Yes I understand that happens 300 or so years.
I don't think he wanted Kel to destroy the pits he complains that the only safe perpendicularity was destroyed with the pits.
I've always took it as Hoid wanting tLR to fall. Which frees Ruin, which leads to Preservation either being splintered or stolen by the Ire, if Kel had done the thing he was supposed to and die like everyone else.
Hoid is playing the long long long and Kel being alive when he shouldn't has already thrown parts of his scheme into chaos.
I wonder if that is how Brandon writes Kel, as a character who's part in the story is already over, as a meddler who refusal to do what he was supposed to do throws even his writing into chaos.
I imagine Kel like Taravangine saw Renarin's name amongst the gold writing.. blacked out into eternity
Quick change of subject.. Kel has already used an avatar in canon. Having access to a group of shape shifters whos's entire culture is built on impersonation has its benefits to a system locked would be universal god slayer/puncher