if player A cannot win with trips or 2 pair , this implies he has no folding equity.

Therefore it's only about breakeven to push.

Any other play (c/c, c/r, b3b, c/f will also be pretty much breakeven.

However, "Let's just say for argument's sake that if another heart comes, then Player A wins the hand. And also, that if Player A hits top pair, trips, 2 pair he still looses the hand - Player A needs to hit his flush to win the hand and nothing else. " is not actually a possible circumstance, so this post is kind of silly