Logo wise I've always been partial to something with the Parliament logo but that ship has sailed and it would be a weird call back to a time without team success.
I think a throwback to the Senagoth "swoosh" era would be very very cool and would seem to play into current ownership wanting to call back to the "glory days" of the franchise.
The Peace Tower jerseys are extremely popular on the secondary market. But I think part of that is that they are a bit of a status symbol due to rarity. People will pay $100-$300 for them, despite them being mesh shirts.
Whoever is in charge of marketing for the Sens store would do very well if they commissioned a limited edition line of Peace Tower Merch. I don't think people want the logo back full time, but hardcore fans/collectors like what wearing the logo and having the merch be hard to find says about them.
If Adidas still had the license, a red Peace Tower logo jersey would be perfect for Reverse Retro.
I agree about the Swoosh. I think we either should go back to some variation of the gold striped jerseys (with red or black), or we should make the Reverse Retro 2.0 our full time jersey. As much as I like the original black jerseys, they don't have much identity to them. I also suspect that they waited so long to go back to them that they missed the boat on the trend. I'd be curious about how fans who are kids or teens feel about the jerseys vs 30-40 year olds.