Can I Skip The Braintree Install and Wait Until The Next Version Release To Update

Yes, you can do that.  I will most likely be doing the same.

I can understand not wanting to install immediately, but I would download now even if I planned to wait for the install.

I can't speak for your computer setup but I did the Braintree updates and they were abundantly easier to do than the old installations and I have had no problems whatsoever! The IRs for ReMatrix was a little tricky but if you follow the instructions in the popup Adobe document I think you will have no problems. The Hardgroove content went right in to the correct places. All I did was open the browser in Platinum and the loops were there. When I opened Rapture and checked the library there was the Hardgroove bass instruments.
Even if you don't want any of the plugins or groove librarys there are updates for the core Sonar program that you should have if you want to stay current.
All I did was open the Command Center and click on the new content to install and when you click on the Sonar Platinum icon you will see an update tab to click. The easiest 15 minutes I have spent updating ANYTHING!

Mack
For my part, I am just a little hesitant about updating after reading the many posts of people running into problems. My thoughts are that perhaps by next time around the process will have been improved. I am not complaining. My system is just running so trouble free that I hate to introduce anything new at this time.

There are many more people who had smooth installations, so the odds are in your favor. It's like the post yesterday about how Braintree caused all these graphics problems, but the issue was the user had hit Shift+Z instead of Ctrl+Z and entered auto-zoom mode. As I said to someone else, set a restore point if you don't trust rollback, download just the SONAR core component, and see what happens. I bet it will go just fine for you. Then download the rest at your leisure. Don't update Rapture, Dimension Pro, or Melodyne if they're already on your system...that's about it.
 
I'm one of those people who had no problems, except that I'd messed around with REmatrix and it caused an issue. So it was my fault and once I de-messed it, everything worked fine.

FCCfirstclass
Smooth as silk for my computer.  Took around 15 or 20 minutes.

Same here!

I think the update fixes somethings, and the issues seem to be with the new content.  So if you update and don't use things like the new Bark of Dog plug-in I doubt you will notice anything different. Perhaps you miss out on a crash or 2....  

The update fixed a major issue for me with Pro Channel and Rematrix Solo. Everything else has been fine the update was super easy

Smooth and fairly quick here as well. I try to make time for updates and when time is really tight, I sometimes start them prior to going to sleep for the night. Somehow I sleep better knowing something else is working on my behalf while I'm doing nothing.  :)

This mirrors my experience precisely

No issues here.

Easiest update I've done.  Worked like a charm, done, installed and running in 20 min. max.

Managing how you do your updates and maintenance is a personal workflow. I either do it as soon as I get to the studio, and start it while I go to the bathroom, take off my coat, turn on the rest of the lights, and pop open my laptop to look at any notes while it processes. Or I do it at the end of the night and start it downloading while I go to the bathroom, turn off some lights, put on my coat...you get the idea.
 
I'm in the middle of finishing a record, so it's pretty easy to bust out some mixes, and start updating SONAR while I upload to Soundcloud and listen to them on my reference monitors. As long as updates don't require a restart I can work in another program entirely while SONAR updates in the background. Easy peasey.
 

Noel Borthwick [Cakewalk]
If your subscription is live it should be painless.

Freudian slip Noel?