Diablo III took 9 months to port to Nintendo Switch

[Miyamotoo]

Jumpin said:

A porting team wouldn't be a full-time team of 30 people for a year =P

Maybe 3 or 4 dedicated/full-time people.

It would likely be one artist and 2-3 three engineers; producers (to tell them they're doing it wrong), additional artist/coder assets, QA, and directors would all be part-time.

Eh, you need to be realistic, 3-4 people could port some Indie game, but full AAA game, hardly, for such a projects teams are probably around 10-30 people.