There's the video of Hallowed from a few years ago where Janick's rhythm patch amp failed, so he went off stage to sort with his tech, and H ended up playing the solo. Jan's solo patch worked so he also played it anyway, but it was SO cool to see H play the Hallowed solo again.
It does make me wonder now though, as this set will be comprised of a large percentage of songs that were originally just Davey & Adrian, - I wonder if Jan will take more solos of Dennis' from any 1st album tracks they might play, even if H has done previously (during reunion era), so that we can finally hear H play some of his iconic mid-80s solos that Jan has being doing since reunion. Revelations, Hallowed, Heaven Can Wait ( I know possibly unlikely to hear after being on TFP tour) , Moonchild (I think H did the solo on M.E tour, but Jan did it on SBIT if I remember correctly?).. Maybe some others I can't think of?