Opening day on the hardcourts. Very little has changed with respect to TV coverage but there are some changes
SEC - SEC coverage will be wider in many areas of the country. The SEC games that ESPN has sublicensed to FSN and CSS won't be seen just in the southeast, but virtually any FSN region that decides they want to clear the game. No idea how blackouts will go, but if football is any indication, these games should be more viewable too those out of market using satellite sports packages than the old FSN package.
The conference will also have a new home for its championship, with the semifinals and final moving to ABC.
WAC - The WAC now has games on ESPNU and will have a consistent time slot on ESPN2 during the conference portion of the schedule, usually on Wednesday nights at 11pm ET.
Atlantic 10 - After having its conference championship game shifted to ESPN2 to make room for the Big 12 championship, the conference revamped its tournament format and will now finish on Sunday, in the slot vacated by the SEC. The semifinals will also be nationally televised on CBS College Sports.
Horizon League - The conference appears that it will have a syndicated game of the week and many of those games will be on ESPN Full Court
HD - Supposedly a fair amount of the SEC Network and Big 12 Network games produced by ESPN Regional will be in HD. Don't know if that extends to the Big East Network games. CBS College Sports is also supposed to deliver more games in HD.
UPDATE: Some Big East games will be in HD on a regional basis.
ABC - ABC has virtually abandoned college basketball, choosing only to air the SEC semifinals and championship. No regular season games whatsover.