I never collected many of the 6" ML line but thought they had a really great run both in the character choices and costumes. The Build a Figure Sentinel still stands guard on my bookshelf and is one of the most awesome toys I've bought (not counting SW, of course
But, having seen all of the major characters done, Hasbro really had two choices; end the line and allow collectors to have a finite set they could work to complete or **** on them and redo all the big names in their own paint/style, duplicating what ToyBiz had already done. IMO, ending it was the better choice. I'm sure there were some cool figures that could still be done but we all know that most toy lines like to have at least one or two "names" in each wave to sell it to stores. They were at a point where it was getting harder to do that and keep it fresh without going back over ground TB covered.
And, again as someone that didn't collect much of the 6" line, I'd like to see a few figures in the 4" scale just because they'd fit in closer with the bulk of the toys that I already own in that scale. While I mentioned in my previous post that it would be cool having Punisher and a few other characters that could intereact with the Joe collection, I also think it would be cool to have a Wolverine, Cyclops, Rogue (crossing my fingers), and maybe even a Spider-Man that would be more in scale with that Sentinel.
I don't think I'd collect the full line, but I'll almost definitely buy some of my favorite characters, even if they're in a 2-pack with a figure I don't want. Ideally I'd like a Wolverine, Rogue, Gambit, Spider-Man, Punisher and a couple others...maybe Deadpool and Nick Fury (based on Sam Jackson).