Not really. The game's been out since early 2010 and was only updated a few times afterward. Other than the occasional glitch fix or score audit, actual updates in the form of new content are not expected. Still, there is an OverlorDS sequel planned for sometime this year or next.
Like Limxzero said, the sequel for OverlorDS has been put into motion, so not much attention is going to OverlorDS at the moment.
Not that there are any glitches or bugs in the current OverlorDS that need repair.
I have the feeling OverlorDS has not been touched in some time. The game is in a state of "decay". If some small tweak was made, it is very possible that another bump was unknowingly uncovered. And so few players means a high chance of no one reporting persistent glitches.