Bots would be great. Also I think Sorien is working on showing the tavern chat and the number of players online on the website. That should help numbers. We also need to spread the game via word of mouth on other forums.
I think those durations are too long. Maybe Para should last like 1-3 secs longer than it currently does but besides that I think Clerics are doing pretty good.
Speaking of spawn points, the Cathedral spawn where you spawn in the 2nd floor roof and then immediately fall to the elevator should be moved. It's really annoying.
I don't think nerfing clerics is a good idea. Their ley sucks when not at their shrine for one. I haven't played the game but last time I played I didn't find them to be OP.