Question Can I easily swap out Robot Kyle further down the road?

I am working with humanoid characters for the first time and I understand the models and bones of a character can vary and be quite complex.
I am starting with Robot Kyle to get a Third Person Shooter style implemented.
Will I be able to swap him out later down the road easily?
Will the bones and animations fall into place on other models?
I am worried about doing a bunch of work and having to redo it when I find final models to use.
Anything I can do early to help me in the long run?

Thanks

 

You just have to set your models up to be humanoid and they can all use the same controllers and animations if you want.