Most issues will be handled but not everything. As time goes on and Ryzen matures as an architecture, you will see the chip stretch it's legs as it is tweaked and honed to work better with it's neighboring hardware and software.
AMD made a statement that board partners are working on BIOS fixes to address the RAM speed and compatibility issues. Those fixes should be out now or in the very near future.
Most issues will be handled but not everything. As time goes on and Ryzen matures as an architecture, you will see the chip stretch it's legs as it is tweaked and honed to work better with it's neighboring hardware and software.