Again, this doesn't HAVE to be a bundle with MK11, just a suggestion based off the success of CoD Modern Warfare Remastered bundled with CoD Infinite.
It could also be a standalone thing, as I said much like the 3rd Strike Online release. I think most people would like Mortal Kombat Trilogy, considering it's a lot of people's favorites and it never got a re-release and was never able to be played online outside of a shitty emulator. The only problem is it would have to be the N64 version and they would need to ban Noob for ranked play. Or at least have the option to search with him banned like they had with Akuma in HDR. He was banned in ranked by default iirc but you could check a box to allow him before you searched. You would definitely need to do that for Noob, he's one of the most broken characters in fighting game history, lol.
But to me it doesn't matter of it's UMK3 or MKT, or hell even BOTH! The clasics just need a re-release on next gen consoles and PC desperately. There's really no way to currently play them reliably or conveniently and certainly no way to play them with good netcode. There's tons of new young players that never got to experience games like UMK3 competitively. It would be great and fun for these guys, whether they take it seriously or not, just to experience what started it all for competitive MK would be great!