I'm not sure there's even any point weighing in here, considering it's probably going to get lost in the hysterics, but here goes.
I'm not totally against this new idea, but I do find myself very critical of it. I'm sure no one, even the Strause's, would reproach anyone for that. It is a rather radical inclusion, after all, and who wants a fan-base that dumbly sits there and accepts everything that's thrown at it. A healthy level of criticism helps to keep the franchise to a certain standard, which is exactly what prompted the Strause's to want to do this movie after seeing the last one.
My primary concern is not that this is out of sync with the feel of the alien species, indeed it's very much in the spirit of the first movie. But I am concerned that it makes the life-cycle we've known up until this point rather superfluous. Surely laying eggs which sit around relying on some stupid creature to come and poke them is terribly inefficient if the aliens also have the ability to impregnate people directly. This system has the clear advantages of mobility and selection over the egg-laying system, which is both static and ruled by chance.
The potential problem is thus, if they have this ability earlier, why would they ever abandon it in favour of one which is clearly less efficient?
I'm going to wait and see how this is portrayed and dealt with in the film itself before I start going ballistic. I think a large part of its acceptability will come down to how it translates emotionally. If it's dark, disgusting, and wrong I'll most likely embrace it. If it just falls on its face and looks goofy then obviously I'll have an issue with it.
Considering that it is going to be in the film, whether we like it or not, I do hope that it sheds some light on the hive process as well. Either having the impregnated victim start to grow tumorous hive material out of its body, which both restrains it and creates a suitable environment for the next, or to show the predalien impregnating and then cocooning the victim could potentially be very interesting.
Thus speaks the voice of reason.