To make the figure automatically update, that can be done within Powerpoint. Use Insert -> Picture -> This Device. Instead of clicking insert, use "Insert and Link":

Now, every time the image file is changed, it will update the next time Powerpoint is opened. It doesn't update when the Data Table is changed, but it will update every time a new image is saved.
If you want the plot to be dynamic and interactive, you could export it to HTML or use JMP Live. As far as I know Powerpoint does not support HTML objects embedded in the slide, it only embeds a link to the HTML file, which you could then open with a browser.