Would catch can help to reduce smoking?

I'm resigned to the fact that my engine is worn (S4). Haven't had chance to get to confirm what's wrong yet, but fair bit of blue smoke after a long overrun - so I'm assuming the worst (bonus if it's not). Otherwise the car is fine, so I'll be looking for a replacement engine when I can justify it.

In the meantime the smoking is a little embarrassing, so I'm wondering if something like a catch can would make any difference? I'm not a mechanic so would appreciate some advice from someone more experienced.

Thanks for the very helpful replies - much appreciated.

PCV and pipes all look quite new, although this will be the first port of call, I'm not getting my hopes up. Compression test will follow to get a basic idea of things - just need to find a bit of time to get around to it.

I'm obviously not a mechanic and will be relying on someone to do the work. I've already spoken to a few places and most have advised that it's going to be a fair amount of time and money sorting anything like that. Time is a bit of an issue - I kinda need to drive the car, and i's also been mentioned that possibly they can't be honed due to the way they are made? Not sure on the specifics, but I'm had similar from a few places.

I can however get a 'newer' engine relatively cheaply and get it dropped in - appreciate that this may come with it's own problems which I'd need to watch for.

Little bit stuck with which way to go and obviously while everything is out, I know it's probably a good idea to look at doing tensioners, clutch, DMF, etc... so It's not going to be cheap and something that I'll need to plan for. This is why, just for now I was thinking about trying to cover up the embarrassing smoke signals I'm leaving sometimes.