An IJN addon would be great!I'd certainly buy and play it too.
This isn't really such a hard feat for Ubi.They did this with IL-2 .They made 2 major addons (AoP and PF,have them both
) which grately enhanced the game .They added new aircraft new vehicles new controllable aircraft bug fixes and things like that + new campaigns and multyplayer maps.With PF they also introduced a pacific campaign itself,complete with IJN campaign.