Apparently SRW has been using SEED as their replacement for the once token Universal Century presence in the series, and more recent Gundam continuities haven't been popular enough to dethrone it. The Astray side-story seems to have at least been refreshing and different enough to steamroll most of it in SRW W, maybe they should use that more often (I'm all for seeing more of Lowe throwing around that stupidly humongous katana using a mech riding a mech).
SD Gundam Three Kingdoms should be fun to see interacting with the rest, even if I'm not that well versed in spin-offs like this. I bet they'll spend a lot of time interacting with Miku Fei Yin.
I do wonder if Miku Fei yin will have any move that are different from stuff the regular version used in Alpha 3 (I think she was in one of the DS games too?...). She already had a golden transformation thing there, maybe that'll be gone? Maybe she'll get AoE "bard" buffs like Macross 7's Basara and GaoGaiGar's Mick Saunders 13?
I don't follow Vocaloid/Hatsune Miku stuff, but in the game's she's in she's just the doll dancing and singing to the available tunes and has no particular characteristic actions, does she?