If you move to Premiere Pro Cloud you MUST export "something" from PPro, since it will not (from what I've read) use Dynamic Link to Encore CS6
I think you can still export from PPro as MPEG2-DVD but that still requires bit budgeting... hence my AVI suggestion to then let Encore do the bit calculation
Also, as pointed out in another thread, as time goes on, Adobe will NOT provide Encore CS6 updates for new Mac or Windows operating systems http://www.adobe.com/products/encore/faq.html