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Thank you for contacting Intel Communities.
In this case, I can share specifications/features about processors that are currently in the market (such as the Intel® Core™ i7-7700K Processor).
Since there aren't specifications for processors beyond 7th gen, I am unable to share the information with you.
For additional information about current products, you can click here.
I would say that upgrading from your current system to a newer one depends on your needs, of course, you can wait a little bit more to see what is coming, talking about the time you may wait, I am unable to tell.