I know Randy...he's a friend and if he says it's on the "to do" list, it is. That said, it only makes business sense and he can only get the higher-ups to provide the backing to a figure/project IF it warrants inclusion in a line and if fan $$ is there. I think with the popularity of the Avengers franchise, Hulk has a good chance of being made. That said, IF the Cap and IM and Thor don't do well (ie - people "wait" to get them or don't get them at all) they won't get to Hulk as the previous sales won't warrant it.
Look at the 1/4 scale LOTR line NECA did - they were great figures - Gandalf, Aragorn, Legolas - I'd have killed for a Ringwraith, but - alas - sales of the previous three didn't warrant the line's continuation.
Sadly, that's what's happening with the Prometheus line now too; you have people asking for characters NECA can't or won't make unless the older lines sell better - and you have fans who complain "I want this figure," but they aren't willing to support the line as a whole and thus they cherry pick which leads to sup-expectation sales, thus not warranting the continuation of the line.
That's the twist of the knife for Randy too as he's a die-hard fan too and he'd love to get them all made...but it has to make financial sense...and knowing I and 5,000 other fans have to buy a figure we "sort of" want in order to get to a figure we "really" want...it's not a really popular idea for most people...
That's how business in general works and the sooner toy fans realize it and accept it, the better...