Go for it! I don't mind. Feel free to take anyone from Fates, actually. I'd really only care about importing Caeda, Tiki, and Lyn. Maybe Linde and Tharja too. I'd do Marth, Robin, Chrom, and Lucina, but... well, I've already done them several times (Smash 3DS Robin is also on the way)
Perhaps Iago, Gharnef, and Validar would be nice to import as well. Iago might work well on either Kuja or The Emperor, Validar could maybe work on Golbez, and Kefka for Gharnef. Not sure about that last one, but... it'd at least add some diversity?