Thank you for these comments.
Yes, from what I have been reading, the HE1000SE are my current alternative to the Empyrean.
I was 99% on the Empyrean already. Now I am only 95%, after you mentioned the HE1000SE may breathe the ears better due to larger earcups. Long time use is very important to me, as I have this ear heating problem.
However one factor difficult to ignore is that the Empyrean are the best looking headphones ever made, and the HE1000 (and other similar HIFIMAN) are the worst looking headphones ever made
Also maybe Meze cold offer in the future a set of pads more open, that would allow air flow, although sacrificing sound naturally. But with the excellent magnetic pad switching, it would be very easy to switch as required. The pads would be an extra accessory with extra cost, naturally.
Thank you again for the comments.