Purely hypothetical, but if that happens, then New Orleans will want to do a complete rebuild which means Asik is also out in the trade and maybe Hill (though Hill is young enough).
So I think this would be a reasonable trade given that scenario.
Davis, Asik
for
Johnson, Zeller, Brown, Young, BOS 17, BKN 18, MEM/BOS 19 (lotto protected)
So post trade with 2 open roster spots
PG - Thomas, Rozier, Jackson
SG - Bradley, Smart
SF - Crowder, Green, Jerekbo
PF - Davis, Olynyk, Mickey
C - Horford, Asik
Boston is obviously all in using all major assets, but that team would be a real threat to Cleveland and fills in almost every major hole.