Weyland Yutani could be a TV show for sure, but the movie versions would definitely have to ride off the back of the Alien title. You could ( controversial moment) even introduce the Predator into that Alien Universe.
It seems though we are all a bit late to the party on this and hindsight is a great thing. The studio screwed up the AVPs and now they've pretty much screwed up Scotts expansion. I'll give the old boy credit where it's due, he was on the right path with his first go and the studio appear to have screwed it yet again. It seems just like a recurring sequence, like Sony with Spiderman.
They've got something with potential, they just need to get the right heads together.