There are some activities on the CentOS 7 side:
- after a CentOS 7 (1503) alpha candidate for AArch64, there is now a CentOS 7 (1503) beta candidate for AArch64 platforms,
- a CentOS 7 (1503) beta candidate for i686 platforms has recently been announced,
- a CentOS Linux 7 Rolling ISO (1505) has been released.
More than providing a free alternative to RHEL 7, CentOS 7 is about to offer a wider choice of hardware platforms.