First I hope you see why "patch" its a better word then "update".
That said is there any update 8?
Is there any plan or even any need for an new update?

Hey were did my "wehatethewordupdate" poll go? No matter.

No more patches or anything else are known to be coming.
We get Gun Runner's Arsenal and Courier's Stash in four days. After that The Courier and New Vegas drift off into the sunset, spurs jangling merrily along.