I don't remember Q specifying 8 years for the plan, so I did a search (several, actually) at https://qresear.ch/q-posts; didn't find anything about the length of the plan. (Mention of the Cabal's 16-year plan to destroy America IS mentioned, however). I suspect you have a particular post, article, video, or whatever in mind -- and I certainly might have just missed mention of the 8-year plan in my search.

I've always thought the fight against the Cabal would play out over a longer period of time, both early on (for planning, setup, getting the players nailed down and in place, etc) and during the main execution phase, which -- as with the planning in any war -- must be subject to change, to accommodate the unexpected.

Having said that, like you, I have the impression we're nearing the final stage of both the Great Awakening and the start of what I HOPE will be a multiple lightning-strike endgame by the White Hats against the Cabal. Even in the best scenario, there will be a mop-up and getting settled phase that could span many years. How long to undo the damage from the "vax", from malicious "education" of entire generations, from the economic devastation done by the Fed and Congress, etc?

It may be pure hopium that the endgame is near, but it really does feel that way to me. I'd love it if the take-down of the Cabal and initial rebuilding of America were finished in the next two or three years.