Shirley can't do the jungle for as long as she's on Strictly unless they changed the schedules of either show (very unlikely, both are ratings hits).
I think this should maybe be the last year for some people - everyone sacrificed to get through the restricted COVID year so got a free pass to do this year but it's time for some changes after it and I'd maybe put Shirley on the list because it just seems like the public can't take to her. Shame because she is a legend in the dance world but it is a TV show at the end of the day. I'd look into getting past pros onto the panel who are qualified to judge both ballroom & latin - good for the audience (familiarity) and the respect of ballroom. I know he was stuck in the dark ages in some ways but the show's judging hasn't really recovered since Len left. Shirley was a good choice on paper but didn't work in practice and they should have never hired Motsi nor should they pander to Bruno to keep him onboard, if you can't judge 2 years in a row, let someone else get the gig.
I'd take Shirley staying another 5 years beyond this year over any more of Motsi though.