I've never understood the legal issues. Couldn't a company that wanted to reprint Dreamwave just pay off the artists for the issues that are in question? Oh no, maybe somebody might be dishonest and get paid a second time. Whatever.
I think it could be done. Just no one wants to.
No, you got the long and short of it.
From what I understand, those comics can't be reprinted because the creators were never compensated and it puts them into a legal limbo. You're absolutely right that someone could pay them off, and I'm sure the creators would be more than happy to get the money they're owed, or even part of it.
The problem is someone has to WANT to pay, and shelling out money for a bunch of old comics from an incomplete continuity is probably not on anyone's priority list, even if they were in the mood to be spending money in todays economy.
It'd be cool if Hasbro or Skybound compensated the artists and writers and etc. and it would be even cooler if they paid them to finish out some of the stories, and hey, maybe that will happen. I just don't see it happening anytime soon, given current state of things.
EDIT: Like, Skybound made millions on that Marvel Compendium kickstarter, plus more with the regular sales and couldn't even be bothered to pay someone to fix the errors introduced by IDW. Given that, them paying extra to get the Dreamwave stuff seems unlikely.