I work in it too. And the US govt is not approving or even looking to approve new EHRs. The bureaucratic hurdles (and regulatory capture) are such that it is no longer feasible in this country. I would write one in a heartbeat if it wasn't a doomed venture.
There are lots of new EHRs being approved. Just go look on CHPL and you can see that there are a 100 new EHRs that have made it through the 2015 Cures Update certification. Its hard and expensive but it can be done as I can attest to getting our product certified just this year.
