I too would like more info on this. If you get the app, would you need to somehow disable the native Swype and how would you do it. Is the app better?
When it's installed and you look at your list of keyboards you'll see
Swype (the OEM)
Swype + Dragon (the one in the Play Store)
As I had Swype Beta, that's also on my list.
That means you can go to any of those at any time, just select the one you want.
Too early to tell if it's better, but at least there's a chance of it being updated.