How large of a break are we talking about? If you've been gone for something like 4 years, many of the early and archaic character sheet templates have been updated or replaced with newer version, but if you've been on a much shorter break, much less should have changed. Are you talking about some Character sheet templates for some specific game systems, or are you talking about individual character sheets of specific character in some of your games? Individual character sheets in your campaigns should be untouched, and even if some character sheet templates have been discontinued, they should still exist in old games, even if they can't be selected in new games. Usually old, low quality sheets templates have been discontinued in favour of newer & better or official versions at some point. There shouldn't be many sheets that have been discontinued without a replacement unless it's for a very, very obscure and seldom played game. All or most character sheet info should still be available in the A&A tab, even if the game doesn't have any sheet template in use to show it properly.
