Goodbye Summertime 2012 :(

I have heard some folks praise Milonga, by Dan tobacco. I believe it has the flavour profile you seek. I am not really an aromatic guy, so I will confess I haven't tried it.

I haven't tried Peterson's Summertime, but I'd also recommend Dan Tobacco's Milonga. Other options I'd recommend: Trout Stream from pipesandcigars.com or Lane LL-7

Dan Milonga was the first to come to mind !
Tom

Tastes are very individual. I know I told you aromatics are fairly fleeting, but who is to say you won't like what Summertime 2012 tastes like in 1 year, or 2? (Longer than that is a bit of a stretch, but who knows?)
All I can guarantee you is that it won't be the same. That is not to say that you won't enjoy what it turns into...
I would encourage you to buy as much as you will smoke within one year if you truly love the blend.
If you feel like buying more, just keep in mind that its flavours WILL change and it won't be as aromatic the longer you have it cellared.
Keep in mind that Peterson 2012 is mostly Virginia and burley with a bit of cavendish so it should have a little more staying power than a simple flavoured black cavendish blend...
I don't enjoy aromatics so I can't refer you to any other brands, but I just wanted to clarify that all is not lost and that you can get another season out of this blend if you so desire.

If Vanilla is what you seek, then try some Eric Stokkebye 4th Generation 1957. This is a mild vanilla scented tobacco that tastes like it smells. Has a slight kick to it, much like the Peterson aromatics I have tried, but the flavor is tremendous.

I am a huge fan of Jack Lee Blend's Honey Malt. Made by our own pipeinhand. To me it smells fantastic and tastes just as good. You should give a whirl. Charges a little over $4 an ounce and IMO is probably the best Aro I have tried to far.