If you want some success next year, best thing would be to get into it now. Fitness only gets you so far. There is much to learn. I'm going through it right now. Getting dropped is not my problem, it's the final sprint. It's going to take some time, but why wait a year? You'll regret it. Get your bike set up, and race it - even if it's mid-season when you start. Hey maybe the strong 5's will upgrade by then.