They did make the number of quickbars two instead of one after people complained.
(and thank god, because that would have been awful!)
I keep throwing around numbers in my head. On one hand I wonder how many people who just solo will jump down to the 'preferred' package just to save money. Seems like the smart move in many ways, and there are a number of these gamers. Realistically most of what I do in-game wouldn't change with 'preferred' status. Still haven't done a warzone yet, rarely do FPs, Space battles are mainly a quick way to make up an experience shortfall (instead of doing something like the bonus series on a planet) and are meh. Plus you can still do outdoor group content with the herioc 2/4 stuff (of course you couldn't wear any of the gear... )
On the other hand a lot of the F2P restrictions feel like they'd make the game somewhere between frustrating and nearly unplayable. If F2P isn't an attractive option I could see things remaining relatively unchanged in that regard. Someone who's used to playing the game the way it is isn't going to want to make their life more frustrating, at least not to that degree. Still with the number of servers I really don't see pure F2P accounts getting any playtime around normal hours, and preferred status is easy enough to get. So more or less guessing anyone actually playing the game for any length of time will at least have preferred.
2 more days, it'll be interesting to say the least.