Missed Opportunity

I just realized IS is releasing challenge maps according to Warriors DLC characters. One of those characters is Owain.....NOT Odin. It would have been a great way to bring him into Heroes, but their schedule does not show any more new heroes for April. So will IS surprise us with new Owain? Or just make a challenge map using Odin? Or not even do an Owain/Odin challenge map at all?