For BCV, BWV boardwalk view and standard view your chance are slim to none . Your best chance is for a BWV pool/garden view. In either case call exactly at the 7 month mark.
Doesn't look too bad. both resorts currently have 2BR Lock-Offs available at 7 months, not sure whether it gets tougher on that particular weekend. I created a tool to help people see what the availability was at multiple resorts at once. You can check it out at ******.com.
Chances should be high for a 2BR at BCV or BWV pool/garden view. Both were open at 7 months out for that period both this year and last. Chances will be low for BWV standard or boardwalk view. July 4 time is not a high DVC demand time. You will also likely find 2BRs at VGF, VWL, and BLT lake view and possibly theme park view will also be open.
I just booked a 1 bedroom villa at BCV for eleven nights checking in on June 9th.
When I booked every room category at the epcot resorts were available. Even the standard view rooms at the BWV's.
Searl