The email was read in response to a question regarding whether or not Call of Duty could be ported to the Switch (or its successor).
"Given closer alignment of Gen 8 platforms and our previous offerings on PS4 and Xbox One, it's reasonable to assume we can make something compelling for NG (next generation) Switch as well." - Bobby Kotick
If it's a handheld / hybrid console, it of course can't compete with latest home consoles when it comes to the raw power, and I don't think we can expect that either. Even then, if it's true, it looks like a good jump from current power.