I guess we will.
You know what I find weird? I think we had an Electric-Dragon type in the CAP metagame, and now they're making a signature legendary that exact type. Kind of odd if you ask me. Coincidence?
On another note, I would love it if certain items got overowrldly effects. For example, leftovers would act as a poison in reverse, healing the holder by a certain percent every few steps.
I think it's just a case of new type combinations and only a coincidence. There is also a dark/ground CAP and now we have Meguroko, but I doubt that is of any significance. I hope we get more cool type combinations, though.