The game has at least 1 year until fully finished in my opinion, count all the remaining endings (and some may have more than 1 alternatives), count 1-2-3 updates for each of it, count 1 month for each update.
So far the game is made in quite realistic and logical way. I don't believe the endings will be out of logic. Sharing doesn't look suitable for the current path. And I don't think Laura will become mindless and sex addicted whore, or slave for Luca, implementing all his wishes. He can offer her good sex and a pleassure which Harry cannot, so she will keep cheating, but that's all.