From Apple’s press release:
Apple today announced iPad Pro is available to order online on Wednesday, November 11, from Apple.com and will arrive at Apple’s retail stores, select carriers and Apple Authorized Resellers starting later this week. Apple Pencil and Apple’s new Smart Keyboard, also available to order on Wednesday, bring breakthrough levels of precision and utility to iPad Pro.
I don’t plan on ordering an iPad Pro — I’m still more than happy with my iPad Air 2. But I could see myself upgrading to the larger device at some point in the future. The Air 2 completely changed the way I work and has quickly become my primary computer. It all depends on developer support, but I imagine a larger-screened iPad would allow me to be even more productive than I am now.