Hunter and MJD haven't had a lot of time to comment on the next products to come out, hard at work as they are. The next TAs, as I understand it, are TA8:Watercraft and TA9:Robots Of Charted Space. The artwork is still out on TA8, as it is for TA9, and it has been since late October/early November.
So I imagine that, once the art is in, there's another month involved with getting the TAs through layout and back again, so we're probably looking at late May, at the earliest, before we'll see the next one.
Mind you, this is based on old data, so things may be further along than I am aware of. Unfortunately, I only have previous announcements on the COTI boards, the most recent being in February, upon which to base this guesstimate on.
I imagine that, if you know any sci-fi artists, if they wanted freelance work, they should contact Hunter directly from his email addy under the Contacts portion of the main website. Based on Hunter's comments, that appears to be the biggest hold-up on QLI's production line at the moment.
Hope this helps,
Flynn