Not yet. You can provide feedback to Apple here:

• https://www.apple.com/feedback/numbers.html

Not yet. You can provide feedback to Apple here:

• https://www.apple.com/feedback/numbers.html

However, a month after this question was asked, Sal Soghoian - then the Product Manager for Automation Technologies at Apple got on stage to demonstrate how to automate placement of a numbers chart inside a keynote presentation. This should be easy to automate following the video and slides.

• https://developer.apple.com/wwdc15/306