Kickstart improvements, setting up network in an automatic manner out-of-the-box
This may or may not be a RHEL7 specific suggestion as this can either be implemented in Anaconda or (perhaps prefered) as a "off-the-shelf" snippet delivered as a part of RHN Satellite.
* Provide a standardized and automated way to setup networking. Including but not limited to setting up: nic configuration (ip, netmask, network, speed, duplex), enumeration order of network devices, routing, bonding, vlans, bonding+vlans, switching from DHCP to static addresses during install time, enabling services and firewall rules. It would be pretty trivial to get that in place, but would provide tremendus value, as most customers are faced with creating custom kickstart solutions to solve issues surrounding this.
Doing this would remove the biggest threshhold for adopting RHN Satellite.