Thanks so much! I'm really glad you're enjoying the trinkets and the game overall.
Right now, the plan is to stick with a single accessory slot, since with the current zones and difficulty level, having two would make things a bit too easy. That said, once we introduce higher difficulty settings or new zones, I'd definitely consider adding a second accessory slot to keep things balanced as the game evolves.
And yes, I'll be continuing to work on Serenitrove for as long as I can! As long as performance holds up (it is a browser game, after all), I've got plenty more updates and ideas planned.