Fresh Install Sonar X2/X3 on new machine - what VST's am I missing?

I just assembled a new DAW PC and I need to reinstall Sonar X3. On my old PC (which died) I had both X2 and X3 installed.
Now most of my projects (I'm fairly new so not that much) can be imported easily in X3 as I have not yet used V-Vocal and from what i've been reading ARA is much better anyway.
 
My question is, are there any VST's I'll be missing if I simpy install X3e. I seem to remember mp3-encoder and some other plugin no longer being part of X3 but I can't find that info anymore.
 
So, if I install X3 will I miss some VST/plugins that were in X2 but are no longer in X3?
 
Btw. I have no interest in the new cloud-based Sonar Versions. X3 will be my last stop for now so I need to make it work with that.

Thanks! Since I never used R-Mix or VC-64 (simply because I'm still learing to work with Sonar) and thus won't have any problems with older projects, is it still worth installing them by doing a custom installation of X2 or are they replaced with (better) alternatives in X3?

Thanks for explaining. If it is only these 3 VSTs I can live without -especially since I never used them so far anyway.
I was more concerned synths like Z3ta or Dim Pro with its (free) Expansion Packs were not available anymore if I installed X3 but as that doesn't seem to be the case I'll go for a clean and fresh X3 install.
 
You're right I haven't really researched the whole new distribution mechanism. It's simply an uneducated feeling of dislike towards activations and/or dependancies that require an internetconnection (which I don't want on my DAW-OS -which is part of my new Dual-Boot PC).
 
Same way I will never use Cubase (although I love it since I bought the iPad version) because of the dongle and same way I dislike games that need Steam or Valve to work.
 
But I will give it a good look and wait for the early adopters to form a more 'educated' opinion.
 
Anyway, thanks again for helping me out!