So these funds have come from the HIVE you had originally earning on Binance, correct?

Yes!

Is the plan to use "trading profits" rather than HIVE income (from Binance mainly) to cover the issuance of new tokens to delegators?

Still dont have not a strong position regarding this (by income you mean curation income, right?).

But yes, plan for now is to reduce as maximum PWR issuance and this means using a) curation income and b) 'trading profits' as you referred to it to slowly DCA PWR.

This PWR is held (for now), but later my plan was to use it to refill delegators pot. The HIVE could be used as dividend for LP's.

But again, nothing 100% set in stone.

Glad to got you onboard!