There is nothing different about Hypers and Gigas. The main differences are the height and support structure of the lift hill. Layouts are entirely subjective, we haven't seen a MCBR on a Giga, but other than that, Giga layouts are entirely subjective. You could see an airtime giga eventually, and maybe a low to the ground Hyper. They're largely interchangeable. I've not seen B&M take risks in recent years, I've only seen improvement on pre-existing formulas. Don't get your hopes up for a launched 399ft Giga with inversions, It's probably just gonna be a further improvement on what they've already done.
(I also don't mean to come off argumentative, I just don't want to see this thread speculating a Roller Coaster Tycoon level of realism)