I'm going to guess that they won't appear on the Switch despite not being on Trash-engine Frostbite or originating from PS3/360 systems that the Switch is well stronger than....because E.A doesn't want Nintendo gamer money for some reason.
EA has always been kind of pissy about Nintendo. I think they started hating Nintendo when they reviewed game software sales in the 1980s and the top-selling EA games were on page 3 behind three pages of NES games. They also got pissy because they couldn't strong-arm Nintendo into letting them release their own cartridges on the SNES the way they did to Sega on Genesis. Nintendo just flat-out refuses to kiss EA's ass.