Sonar Upgrade Question

I currently am running X3e Producer.  If I upgrade to Sonar Artist, will I be able to use the prochannel and prochannel plugins that I currently have?  Or will it be unavailable since prochannel isn't included with Sonar Artist?  I mainly want the bug fixes and workflow enhancements. . . I already have lots of plugins.

I thunk this has been answered before but for the life of me I don't recall what the answer is.
 
{quietly slips out the back door}

Actually I'd like to raise another question after more thought.  Like I said, I have X3E Professional and it works well, but I would like to upgrade to the new Sonar to get continued bug fixes as well as the improvements to workflow.    However, I don't want to lose what I currently have with the prochannel and the fly-out EQ.
 
I really don't want to shell out $150 for Platinum, as I have no use for vocalsync, drum replacer, etc.  Even moreso, I don't want to get into shelling out $200 a year after that for additional features that I probably won't use.
 
Anyone have a suggestion?

Thanks Karyn, you are right. . . . that does sound like the best approach.  Bummer that I have to wait for the bug fixes and feature enhancements, but X3e works pretty darn well so I can live.
 
By the way, does Platinum include the tool to export MP3 files?  Or would I still need to pay the extra $10?