I really don't dig the new name. But I wasn't a fan of the old one either. '999' was such a strong title. It was easy to say, it had purpose, it was foreshadowing right on the cover, and it played into the numbers motif that comprised the entire game.
EEA: GPD- This one was just...eh. It felt more like a project label to keep people from knowing a sequel was on the way than an actual title.
ZE: VLR- Right off the bad this title invokes the 'hokey' element. Calling it "Zero Escape" is just about as corny as any sequel horror film like "*insert killer's name* Revenge". Virtue's Last Reward does sort of redeem it though as I image the ambidex game will be a greater challenge or morals compared to its nonary counterpart; so I can see the allusion.
I know something like 999-2 would've been way worse and nonsensical; but I feel like they tried just a little too hard to make it look fancy rather than going for something elegant and fitting.