Looking at the roadmap, There's only one "unannounced" vehicle that the US Vehicle team are shown as currently working on (ISC today stated it was the US team creating it), with work scheduled for completion in early August (Work on that vehicle started at the start of the year), so it may be ready sooner than you anticipated.On a side note, Storm concept can help you get a discount using store credits. It'll probably be a couple of years and end up being like $5 or $10 discount, so no need to go crazy over it, but just thought I'd mention that.
The SRV that is available now has a good chance of being released soon, as well, and should give a $10-$25 boost to chains.