I go with Yoka by UD. Allen doesn't trow enough to unseat boxing genius in Yoka. Besides Yoka has better work rate.
Allen weighed in @ 236 vs Thomas in March and @ 272 vs Howe one month ago. He won by TKO4 (4 rounder) vs Howe who was stopped seven times before and always in the first or second round so it might be a warning that Allen needed four rounds to stop a glass chin like thata. I think the result will depend on which version of Allen shows up. The fit, sharp and motivated one or the fatty. In the first case he should lose a decision. If he shows up like against Howe he will get knocked out in the middle/late rounds. Totaly overweighed, out of shape. Yoka might be overrated but he is fit and he has power.