I am sharing a script to Renumber all placed views on a sheet. My firm numbers sheets from top right to bottom left (not CAD standards A1-D6) or bottom left to top right.
If you too are numbering views in this way give this script a shot and let me know how it works. If you encounter any problems or make tweaks post back so we can make the script better. I have only ran this on select few sheets so far. (I hope there are no bugs)
Here are some links to other post on how to make this scrip other ways.