An update on the Bethesda Softworks Forums by our old comrade Jason Bergman says the next DLC for Fallout: New Vegas is complete and ready to rumble (presumably Honest Heart), but is being held back until a patch is released to "improve the overall New Vegas experience" (thanks Bill). He says the patch is also now complete, and in the hands of the platform holders, and is to be expected over the next couple of weeks, "although PC will almost certainly get it first." Here's an outline of what to expect from the patch and beyond:

So what’s in that patch? First and foremost, optimizations and stability improvements. While there are bug fixes, our core focus was on improving stability and performance. We worked directly with first party platform owners to identify issues, and we have fixed a great deal of the crashes and lockups that people were experiencing. In addition, we scoured the forums and this patch includes weapon balance tweaks and other requested fixes.

We know we’re not done yet. There’s still more work to do, and we’ll be monitoring the forums very carefully following the release of this patch, looking for more issues. We do have another update planned further down the line.

So I’d like to apologize for the radio silence. Hopefully you’ll be pleased with the enormous amount of work we’ve put into this update over the last few months, and will enjoy the rest of our DLC releases. We have some pretty cool stuff coming soon. Stay tuned!