Bracing harveys return worry renews worst come

It seems like you're referencing a famous phrase from the TV show "Friends". The correct phrase is:

"Could I BE any more...?"

The phrase you provided seems to be a jumbled version of the original phrase. Here's a breakdown of what it might be trying to say:

So, if we put it all together, it might be trying to say something like:

"Could I BE any more worried about Harvey's return and the worst-case scenario?"

But, of course, that's not the original phrase!