No.
I mean, I don't know. There's EHM, though I don't know anything about it. But I just think it would be too different, and that's kind of my main issue with V2. If we started a league fresh with V2, that's one thing. We would all learn and grow with the simulator and find out what works and what doesn't. My current theory on partly why V2 is so shitty is because it doesn't play well with our 2-line team setup. But also it's bloody arbitrary. O'Malley and Koenig and Karnage in their prime all had painfully mediocre seasons when I ran tests, while random rookie/sophomore players (I think Gowecny at the time?) were excelling. And then when I would do another sim the same supposedly elite players would be mediocre, a different group of mediocre players would be elite, and the previous group of elite mediocre players would suddenly be terrible. And admittedly, it could be entirely different if we did an actual season sim, because full season sims generally have some goofiness even at the best of times. But they at least have some semblance of consistency and predictability. Sure, you might have AK47 be a Top 5 scorer in one full season sim, but at least over several sims Maximoff, Kohler, and Lincoln are consistently up there, and Sean Blacker never is.
The best we could do if we wanted to change engines would be a concurrent alternate reality full season test of how V2 (or EHM even maybe probably not) would work, and maybe seeing if it's feasible, or at least if there's adjustments we could make to make it so. Otherwise, a different simulator or a new version would require a whole league reboot IMO. And a league reboot is just a synonym for closing this league and attempting to keep its members.