Oh you mean like "Emergency!" and it's 'final season' being TV movies...so there's precedent for it

I would go ahead with Season 9 with a few changes: get rid of Til Death Do Us Part (it's just stupid!) and To Kill A Mind (I think they brought back Dr. Ormsbee one last time and could have skipped it). I would tweak To Die in Paradise to put the start of Danno's chase on Kauai into Act two or three rather than have it start all in Act Four. (I think that's how they did it, it's been a while since I watched). On top of that, bring Tall On The Wave and Descent of the Torches into Season 9.

Then I would end with Season 10 but ditch Angel in Blue and When Does a War End? (both are useless). Also possibly ditch A Death in the Family because it's all going to end. I would move The Pagoda Factor, Number One With A Bullet (2-parts), Stringer and finish with Year of the Horse.

Just my thoughts...