In the post-final-level text of Lemmings Plus V, reference is made to the future project, also revealing the name as "Lemmings Plus Twists".
I haven't done much work on this project yet. And for now, I'm putting it on hold in order to work on updating the older Lemmings Plus games for V1.47n compatibility. These updates won't be
officially released until NeoLemmix V1.47n is, but I'm going to start working on them now so they're ready for when V1.47n is.
Mostly changes will be limited to those required for V1.47n compatibility, but I'll also be redoing a lot of the rank signs so that they fit in with how the signs generally look in recent versions of NeoLemmix.