I'm nervous for you having read this. You are already making certain comparisons as in this one perhaps being "the right one" having yet to have gone out.
Just my .02, but if it were me, I would be coming to no conclusions until waaaay after that first date----and I'm talking months.
Examining this after standing back and examining your post, my first thought obviously is that you are both nervous and anxious, as you state, it being your first date in years. If I am going to offer any advice, it is that you just go out with your eyes open, and with no other goal than to enjoy this evening. And one other thing....please don't make the mistake of grilling them from your mental checklist, that would be the worst thing you could do.
Relax, go out and enjoy yourself, but do so just the intrinsic value of enjoying the evening and each other at face value.
If it's meant to continue....it will.