For the record: there's nothing wrong with new looks and new costumes. Several characters, including Superman, changed their looks multiple times long before Flashpoint. However, the classic looks should always be in continuity as their, well, classic looks. So, the post-Reborn Superman suit is fine, as long as its clear that its not his first ever costume and that the trunks look is. I'm okay with Wonder Woman's Rebirth look, but what I would like more is cementing her classic look and costume as being in her continuity as her classic costume.