Best thing to have is to have no expectations at all, and just enjoy the current product.
Updated product wont be that much different, so If you enjoy LFS now, you will enjoy it after the update also, so no point in not racing now.
If you prefer something else to LFS at the moment, I doubt enough will change to sway you back to LFS. We need atleast 5x more racers online daily to be able to start some real daily pick up racing, and even then it will be quite limited to only few servers.
disclaimer : I'm talking all that straight outta my ass, but on current evidence, the upgrades wont be big for end user experience. Except if Eric goes crazy on sausage kerbs usage...but then it will be change for worse.