I think the last collected web fiction was released in November 2013. Are there any plans for more?
Short answer is: Yes.
Longer answer: There will be when they get a slug of it done. My impression is that they work on this here and there during slow days, wait for a bunch to be ready to post and then drop them all at once.
Either that, or they put it off until they have enough to make it worthwhile to work on and then, POW drop a whole bunch on us. I usually pick them up during the Late December/Early January 10% off sale.
Yeah, like Itchy says, we try to do them in big batches, and they unfortunately make way less money than most other products (they're available for free online, after all), and thus fall lower on the priority list. But they're definitely still on our radar! Glad you're interested in them!
I must have them!!!
:)