The most pertinent question is: will it have Driv3r?
That would bring it over the top for me.
In seriousness, I do like that these plug-'n'-play versions of old consoles are being made and released by the original companies themselves rather than cheaply loaned out to some less-competent third-party like I've seen with most of them (there is one for the Sega Genesis which is apparently not great, which isn't exactly a shocker). As long as they remain reasonably priced, with good features, good game selections, the games are well-ported
and aren't released in quantities of like 4 before being discontinued abruptly despite high demands (you dun **** up there with the NES Mini, Ninty) I'd like to see more of these. (and speaking of Sega, yeah they should jump on this bandwagon too, it's not like they haven't shown themselves to be eager to re-release Sonic and other Genesis classics a billion times already, but now they can do so with more interesting packaging - though I'd only really be interested if they actually released some Sega exclusives that weren't just licensed by them - games like Contra: Hard Corps, Castlevania Bloodlines and so on, like Nintendo has done putting out some of the old Konami and Capcom classics on their portable systems).
Through Dark Souls of futures past. The speed runner longs to see. One boost between a pair of binos. Parry Walk with Me.