Hmmm... I'm hearing they (Jouhki and crew) want Kalle to head to MSport for a 1 yr only deal.
I would think this mainly because Toyota is trying to groom Katsuta. Bringing Kalle onboard will make Katsuta look bad to be honest.
I actually think Kalle is fairly mature for his age and experience. He can be a 3-5th place finisher and bring strong points while building his skill. I would pick Kalle over Taka-San, but tell that to Mr. Toyoda.