I'll third that

*casts Summon Storm*

Sometimes the acronym "AAR" refers to an "After Action Report".  That is: it's an analysis of (or commentary on) something shortly after it's been completed (or reached some stage of completion).  In other words, it could be Frogboy's summary statement regarding what features will be in the Beta 4, and/or a heads-up regarding issues that he would like feed-back on (at least, as he is thinking about it, at this point in time). 

However ... there are so many obscure and bizarro acronyms used by Computer People      that it could mean just about anything!  So anyways, Kongdej, I  ALSO  hope that someone smarter than me will answer your question ...  

Very nice.  Where is that?  Is that Grand Traverse Bay?

As a followup to Orion's post, an AAR in the context of a strategy game is where you play through it once, and write up what happened, what you were doing at each stage, post pics along the way, etc.

 Edit: Here  is an example of an AAR for Crusader Kings 2.

Oh my, that looks way better that my after action day at the office...

Derek's very busy with making sure Fallen Enchantress is awesome.  He's been working crazy hours for the past several months straight.  That and he doesn't type 120wpm like I do.

So this means there will be boats?  And...inflatable rafts?

Words per minute.  A measure of how fast someone can type.

Grrr... If I could take back the last karma point I gave you, I would.  

That's just mean.

                                               ! ! ! ! !            ! ! ! ! !

Ah, you teasing, taunting, mischevious little Kid !

And I noticed too, that you've written five replies (#16, #18, #22, #42, and #44) of the first 45 or so, in the Discussion Thread entitled: "New Beta4 Pics at Gamespot".  That Reply #42, in particular, really tells us a  LOT  about the new City Building and City Specialization features that are due to show up in the Beta 4.  So much tantalizing detail ...

You are such a P.T. Barnum, or Ed Sullivan, (in other words a real Master Showman), aren't you ? ...

And apparantly, you just can't seem to help it ...                     

I cant wait to see random caravans travelling by water too!... Although as I said before, I will not hold my breath until boating comes to the game as it kills one of the games barriers ^^

Sincerely
~ Kongdej