dj_485Filer
If your current salary meets the prevailing wages, then it doesn't matter either way. If your current salary is lower, a salary figure equal/more to the prevailing wages must be stated in the LC appl.
RFE may be generated after 485 submission as INS sometimes seek proof of adequate salary. This is more probable if the job letter submitted during 485 states a current salary lower than the Prevailing Wage. However, many have obtained GC w/o RFEs. So there is no way to know what lies ahead.
In a RFE response, a job letter stating that the Company will pay Prevailing Wages upon GC approval may be enough. But then again, some companies don't like to give such letters either.
The road to GC is very unpredictable! However, be prepared in advance.