How you goin into the DLC

Hey all, havnt played Elden ring ina while, but remember having tons of fun back when it dropped, and plan to pick it up again for the DLC. I’m really thinking of starting a new character but not sure that’s the right way, will you be starting new characters or taking existing characters in? What level is the new content going to be? Should I start now that way I am leveled and ready? Would I be able to get in on a fresh character?