And to be completely honest I'm not inspired to work on Blockland content anymore.
Well that's a bummer. I would at least advise to finalize what hasn't been released and release if it is applicable. Like tidying up what you've started enough to a point where it is functional to drive.
Sometimes we move on to other things in life, and that's okay to do because there may be a chance where a spark of motivation may come back for a "season" to keep going just for a little longer, and then move on again.
While others may grieve, if you do leave, I at least thank you for what you have provided for us, and for being an inspiration to other addon-developers like me.