Seems that's going to be the upcoming choice for those that upgraded last year, but may not choose to do so this time around. Seems negating the install of Essential 4 that's coming up, will need to be the plan, as apparently Melodyne will overwrite previous versions (I'm presuming, even if a different levels). Otherwise, you'll lose the poly features in Editor 2, in trade for the new version of Essential 4.
As much as I'd like to upgrade, spending another (approx.) $100 for an upgrade above Essential 4, I'm not sure that's in the cards, for various reasons. Amazing software, but you have to use it, to make the purchase worthwhile...if that makes sense!
In my other thread, I was hoping to see some creative uses, that would "force me"..(!!!) to upgrade, if you know what I mean. I've used it for creating harmonies, and subtle fixes, but that's as far as I've ventured. I had hoped to get really crazy with the poly feature, but have been distracted with too many other recording preferences.
Oh well... maybe sell some blood :-)