Support for Windows Phone 8.1 preview SDK Follow

Hi,
You have probably noticed that Microsoft started distributing Windows Phone 8.1 preview SDK for VS2013 last week. It's currently in closed beta, where I am s well, but it has leaked to Internet anyway.
http://wmpoweruser.com/windows-phone-8-1-developer-sdk-iso-leaked-more-details-about-one-windows-vision-emerges-online/

Unfortunately the latest ReSharper is really not working at all when developing WP8.1 apps - XAML support is completely broken and C# intellisense sometimes does not get even initialized. I had to disable R# completely, beacuse it was causing more troubles to me than actually helping.
If possible, please make the support for WP8.1 priority, thanks!