This makes me think it is just a one off gig, based on a few stars aligning where Mitchell and Nick were going to be down south over Easter and the Blues Festival presented them with a chance to get together and play a gig.
Why not bill it as Crowded House if you have the 3 of them? All you are missing is Paul from the pre-Woodface CH (and. While Froom was never a member of the live band, he was instrumental to the sound of the first 3 albums.
Also, it’s been noted that Mark and Mitchell were not particularly compatible, so it would have been a weird dynamic to have Mark on stage with Mitchell. Also, if it was just making the most of an opportunity of the 3 of them going to be in the same part of the world at the same time, it probably doesn’t make much sense to get Mark and Matt to fly over for one gig anyway.
So left with the challenge of needing somebody to cover drums and guitars, it is very convenient that Neil’s sons are pretty handy on both and were also going to be around. Oh... and they cover the backing vocals and harmonies pretty well too.
I could see Crowded House being Neil, Nick and Mitchell while Liam and Elroy fill the gaps (in the same way The Who are now Daltrey and Townsend, supported by a backing band.) If this is for a one off gig, I don’t have a problem with it.
I can’t imagine Neil properly reforming CH to record and tour with Elroy and Liam in the band - they have their own careers and I can’t see them wanting to do that.
The big question for me remains - what is Mitchell Froom going to be doing down here. I don’t believe for a minute he was recruited by Neil to fly over for a one off gig at the expense of Mark.
I think it is more likely that he has planned to be working at RoundHead Studio before and/or after the gig. This does make me wonder if Neil will be attempting to record with Fleetwood Mac with Michell Froom producing...
Why call it Crowded House then ? Just bill it as Neil Finn..