I'm optimistic that this could mean more Wipeout games in the future, although that concept also makes me nervous, since there's no guarantee that they'll handle the IP with the care fans would want. I'll probably buy the collection to just get a better running version of Wipeout 2048 (so I can finally beat those damn post-campaign challenges), although depending on the price, I may wait awhile.
Now if it has any new content (or like, stuff brought in from older games), then I'm sold, but I'm doubting that will be the case.