I have BTC still on the legacy blockchain that I would like to send to a segwit address to get better fee on future transactions. The thing is that the fees to do a transaction from a legacy address are insane (even with slow confirmations) at the moment. So I'm trying to figure out what would be the best option in my case.

I'm not in a hurry to spend or sell the BTC I have on the legacy blockchain because I'm planning to hodl most of it for a long time. However, I think it would be nice to get the BTC ready at a Segwit compatible address.

Here some questions I have:

1-Is the fees on the legacy blockchain are more likely to get lower or higher in a near future? In others words, should I wait to do the transfer to a segwit address?

2-What kind a saving aprox. in % can I get from sending BTC from a segwit address to another segwit one vs a transaction done on the legacy blockchain?

Thank you!