I don't care if it looks like FSX. All I need is
1. M-C compatibility.
2. 64-bit interface - this will end all the talks about OOM issues and virtual memory limitation.
As a bonus, I'd like to see improved ATC, but I hope that RC Team will do their job much better than Microsoft.
Other than that, I'm happy that all these years I have been smart enough not to switch to FSX (and obviously I won't switch anyway after MF announcement) and enjoy all the good sides of FS2004.