How long will some of the records stand ???

I have been following some the FINA suit talk going on right now and it seems quite possible that they may go back to all textile suits - pre 2008 starting next year. If that happens, how long will some of these records stand ? Tom Jager did a 21.8 in 1990 ... Popov dropped it to 21.64 in a questionable race ... sub 21 may take 30+ years. J. Skinner went 49.44 in 1976 --Biondi did a 48.4 in 1988 Hoogenbaand went 47.8 in 2000 .... sub 47 would take another 25 years.