Great news, seems like a major patch is to be expected, hopefully by next Friday and available on Steam.
I think the ground playable vehicles for the moment should be considered as just an additional feature of another additional feature (having nice targets). If I read B6's post correctly, we can expect whole range of flight particular problems to be solved. I think he didn't (and I hope) put enough emphasis on this in his post. I think the new shiny bits (ground playable vehicles) got the most attention since its something new and "exciting", which as a result distracted many people from the relevance of the upcoming (hopefully) patch.
Also, might I suggest to rather release the patch as soon as the decal issues have been resolved and not wait till all the issues with ground drivable problems or flight models have been sorted? It has been a rather long wait between patches...