see Settings for hardened TLS/SSL & A+ on SSLlabs (Apache ssl.conf file) this should be possible but drops support for Android <4.4 - so for that scenario installations would either have to live with that fact (cutting of clients <4.4.) or should be able (and do so) weaken ciphers TLS version. From the Android client side we can activate ciphers for 16+. The Android client itself should imho support TLS1.2 already. (so we should just have to solve the cipher issue).
The plan has been changed. The default will be weak because of OSX, but people will have the possibility to make it more secure by SSHing to their box.
That way, the server owner can make the decision based on the pool of devices which connect to it, without giving you any extra work and if they want to have TLSv1.2 support for their older Android devices, then they can always hire a member of the Android team to do that