Re: Would you recommend an iPad Pro as an iPad 2 relacement for my child
I'd go with the new MacBook, MacBook Air, or similarly sized and configured Windows laptop. They are fully functional computers, and with the MacBook trackpads, the multitouch options in many ways to me make the experience similar to or better than a tablet. I think the cost for a MacBook, MacBook Air, or a Windows laptop may be in the same range as an iPad Pro.
I do recognize that depending upon your child's age, schools may be providing or recommending apps that are only available for iOS and the iPad. Similarly, from my own experience, I know that kids may prefer a tablet to a laptop or desktop. If your child is nearing middle or high school age, then in my view a fully functional MacBook, MacBook Air, or Windows laptop is a better investment that will allow them to use apps that are required for that level of schoolwork. With OS X or Windows, they will also have access to iTunes and all of the music and videos that may be available on the iPad.