After looking at Gruson's AWESOME Queen, it occurs to me, if Hot Toys made her in 1/6th, she would not need to stand quite that tall, she could be posed in a lower configuration and come in as low as 18" to 24" tall, head kicked back some, and then the only matter would be the tail, which if she were well balanced on a base, could be posed wrapped around towards the front and limit some shelf space...or with that cool scorpion pose when she fought the power loader....
I guarantee I would find the shelf space for her majesty!!! Oh, and I am betting she'd be $250 on opening day. She's not as big as you think. Small parts all spread out, her box might not be as large as you think. Be a lot of building, but I bet she'd be reasonably priced at first.
I agree with DDave too, that it is a given on a Power loader. Rip is ready for that already.
I think HT will make both. I think we will see an ALIENS warrior for sure, a Power Loader, and a Queen. Why? MONEY! HT would make lots and lots of MONEY, ergo, it will come.