Possibly. Hard to predict, really. If you mean the pattern is faint but it's there, there's a good chance it darkens in time ime. If you mean the fin was tattered and the pattern is now broken or irregular it will probably stay that way. The yellow is also hard to predict, it varies by individual, anyway, and is often thinner on females. It can increase with maturity, especially on males, but how much varies by individual fish, some simply have wider orange/yellow than others.
How much the caudal fin will continue growing probably depends on overall growth, but I'd expect it to end up similar to whatever it would have been for that individual. Ime you don't normally see a caudal fin that's simply tattered in a juvie stop growing, at least not in good conditions where the fin heals in the first place.