Sony FDR-AX700 Thoughts

The Sony FDR-AX700 just released but is it worth upgrading to from the FDR-AX100? The biggest disappointment for me was that the FDR-AX700 tops out at 4K 30FPS. If it had offered 4K at 60FPS, I would have considered upgrading. If I didn't already own the AX100, I may go with the AX700 because of