I'll update this post as I organize more of my dream conference rosters.

FCS CONFERENCES

BIG SKY: Eastern Washington, Idaho, Idaho State, Montana, Montana State, Northern Arizona, Northern Colorado, Portland State, Southern Utah, Weber State

BIG SOUTH:Coastal Carolina, Campbell, Charleston Southern, Gardner-Webb, High Point, Liberty, UNC Asheville, Presbyterian, Longwood, Winthrop

CAA: Elon, Charleston, UNC Wilmington, James Madison, William & Mary, Towson, Old Dominion, Georgia State, Richmond (football)

MEAC:No changes to it's membership.

MVFC:North Dakota, North Dakota State, South Dakota, South Dakota State, Illinois State, Western Illinois, Eastern Illinois, Southern Illinois, Northern Iowa, Missouri State, Indiana State

NEC:Villanova (football), Georgetown (football), Albany (football), Maine (football), New Hampshire (football), Rhode Island (football), Stony Brook (football), Bryant, Central Connecticut State, Robert Morris, Sacred Heart, Saint Francis, Wagner

OVC:Austin Peay State, Belmont, Eastern Kentucky, Morehead State, Murray State, Southeast Missouri State, SIU Edwardsville, Tennessee Tech, UT Martin, Northern Kentucky

PATRIOT LEAGUE:American, Boston, Bucknell, Colgate, Drexel, Hofstra, Holy Cross, Lafayette, Lehigh, Loyola, Marist, VMI

PFL:Butler (football), Davidson (football), Dayton (football), Drake (football), Jacksonville (football), Morehead State (football), San Diego (football), Stetson (football), Valparaiso (football), Youngstown State (football)

SoCon:UT Chattanooga, The Citadel, East Tennessee State, Furman, Jacksonville State, Mercer, Samford, South Alabama, UNC Greensboro, Western Carolina, Wofford

SOUTHLAND:Abilene Christian, Central Arkansas, Lamar, Little Rock, McNeese State, Nicholls State, Northwestern State, Sam Houston State, Southeastern Louisiana, Stephen F Austin, TAMU Corpus Christi, UT Arlington, UT San Antonio

SWAC: Alabama A&M, Alabama State, Alcorn State, Jackson State, Mississippi Valley State, Tennessee State, UA Pine Bluff, Grambling State, Prairie View A&M, Southern A&M, Texas Southern

DIVISION 1 NON FOOTBALL CONFERENCES

BIG EAST: Georgetown, Villanova, Providence, St. John's, Seton Hall, DePaul, Marqette, Butler, Xavier, Dayton, VCU, UMass

ATLANTIC 10: Davidson, Duquesne, George Mason, George Washington, LaSalle, Rhode Island, Richmond, St. Bonaventure, Saint Joseph's, Charlotte

AMERICA EAST: Albany, Binghamton, Boston, Hartford, Maine, New Hampshire, Northeastern, UMBC, Lowell, Stony Brook, Vermont

ATLANTIC SUN: Besides replacing NJIT, with North Alabama, no other changes to it's membership

BIG WEST: Besides removing Hawaii, no changes to it's membership

HORIZON LEAGUE: Cleveland ST, Detroit, Green Bay, Milwaukee, Oakland, UIC, Valparaiso, Wright ST, Youngstown ST, Loyola

MAAC: Fordham, NJIT, Canisius, Fairfield, Iona, Manhattan, Marist, Monmouth, Niagara, Quinnipiac, Rider, Saint Peter's, Siena

MISSOURI VALLEY : Creighton, Saint Louis, Wichita ST, UNI, Drake, Bradley, Evansville, Illinois ST, Indiana ST, Missouri ST, Southern Illinois

SUMMIT LEAGUE:North Dakota, North Dakota ST, South Dakota, South Dakota ST, Omaha, Western Illinois, Fort Wayne, Indianapolis, Chicago ST, Oral Roberts, Kansas City

WEST COAST:Besides removing BYU, no changes to it's membership

WAC: Denver, Seattle, Bakersfield, Grand Canyon, Rio Grande, Utah Valley, and some Division II programs.

With Idaho dropping to FCS and Liberty Moving up to FBS I noticed a nice geographic split

West: HI, CA, OR, WA, ID, NV, AZ, NM, CO, UT, WY = 26 teams
SW: TX, OK, LA, KS, NE, MO, AR = 26 teams
SE: MS, TN, KY, AL, GA, SC, FL (North) = 26 teams
Atlantic: MA, CT, PA, NY, NJ, VA, MD, NC, FL (South) = 26 teams
Midwest: IA, MN, WI, MI, IL, IN, OH, WV = 26 teams

We can then assign conferences

West: PAC & MWC
SW: B12 & CUSA
SE: SEC & SBC
Atlantic: ACC & AAC
Midwest B1G & MAC

West:
PAC N: UO, OSU, UW, WSU, Stanford, Cal, Boise
PAC S: UA, ASU, USC, UCLA, Colorado, Utah, BYU

MWC W: Hawaii, SDSU, SJSU, Fresno, Nevada, UNLV
MWC M: Wyoming, Utah State, UNM, NMSU, CSU, AFA

SW:
B12 S: UT, TAMU, TTU, TCU, Baylor, Houston, LSU
B12 N: Arkansas, OU, OSU, KU, KSU, Nebraska, Mizzou

CUSA W: UNT, SMU, UTSA, UTEP, TSU, Rice
CUSA E: ULL, ULM, LA Tech, Tulane, Tulsa, ASU

SE:
SEC National: UK, UTn, Ole Miss, Bama, UGa, USC-e, UF
SEC American: Louisville, Vandy, MS ST, Auburn, GT, Clemson, FSU

SBC N: WKU, MTSU, Memphis, GA State, GA Southern, Coastal Carolina
SBC S: USM, Troy, USA, UAB, UCF, USF

Atlantic:
ACC N: BC, UConn, Syracuse, Rutgers, Penn State, Pitt, UMiami
ACC S: UVa, VT, UNC, NCSU, WF, Duke, UMd

AAC N: UMass, Buffalo, Army, Temple, FAU, FIU
AAC S: Charlotte, ECU, App State, Liberty, ODU, Navy

Midwest:
B1G N: Wisky, Minnie, UM, MSU, OSU, Cincinnati, WV
B1G S: Iowa, ISU, Illi, Northwestern, Indiana, Purdue, Notre Dame

MAC W: NIU, Ball St, EMU, WMU, CMU, Toldeo
MAC E: BGSU, Akron, Kent St, Miami-OH, Ohio U, Marshall

I must admit. Very well-planned and well-structured. And to be fair, with the P5 leagues having 14 teams each and the G5 leagues having 12 teams each (all having 2 divisions), it would logically make sense, geography-wise and competition-wise.

_________________
Florida State Seminoles fan for life (mostly on football, basketball and baseball)! 2011-12 ACC men's basketball conference tournament champions; 2012, 2013 & 2014 ACC football Atlantic Division champions; 2012, 2013 & 2014 ACC football regular season champions; 2012, 2013 & 2014 ACC football conference bowl tournament champions; 2014 NCAA D-I FBS BCS national champions; 2015 ACC baseball conference tournament champions!