Honestly...
probably not for the next six months or so. I'm focusing my development time right now on the more wild ideas I've been coming up with lately, in hopes that one's a hit that the big casinos will want to license from us. We've already been in talks with a few major software providers about Mayan Gold and this new one, so I think I'm on the right track. I'm also spending time on a new site (soon to be announced) that I think will give a nice lift to Bitcoin as a whole.
Having said that, though... our "jack of all trades" NSlots game can be played as a 5-reel slot, with 3 pay lines and adjustable weighting on the reels (for adjustable volatility -- it always comes in between about 90% and 98% RTP). The blue bar icons at the top of the game let you change the number of reels. And of course, Sixty Watt Slots is 5 reels and can be played for 5 credits, which gives three straight lines and two "V" lines.
The only drawback to developing new standard slots is, there isn't much of a secondary market for them these days. And we're trying to differentiate ourselves by breaking new ground. Here are a few screenshots of NSlots doing its 5-reel thing:
