Leave it in the legacy wallet or send now to avoid future fees?

Somebody has to be crunching these numbers at least daily:

I've got some btc in a legacy wallet. I plan to hold them for a log time. I know that someday when I send them, the fees will be high. I could send them today to a native segwit wallet, then hold them there., but the question is: even though I would incur fees from an extra transaction, would my future savings more than make up for it? Say I hold until 120k? or 240k?

Thank you!