According to TFT Central LG is releasing an IPS equivalent of the same VA panel this xmas...
http://www.tftcentral.co.uk/articles/high_refresh_rate.htm#ips
Ah yes, the LM315WQ1, I'd forgot about that. I don't think that will be seen in a monitor until well in to next year. It states production won't start until December, assuming that's even still on track. There's always a massive delay with monitors, even at the point they're announced, and we haven't even heard anything about a specific monitor with this panel yet.
I'm quite sure we will see AU Optronics 32" equivalent of the 4K IPS HDR 144Hz panel that's in the Predator X27 before we see anything from LG. That should be HDR-1000 as well, and the LG will not. Not quite the same thing I know, 1440p vs 4K, but by the time the LM315WQ1 is out there, it could look quite dated. Quite a few new panels are slated for release next year, so it should prove interesting. But delays will no doubt be inevitable.
Personally, I'm keen to see some 4K IPS screens with G-Sync that are more than 60Hz. There has literally been ONE single monitor (the XB321HK) in the past 3 years that is more than 27" with IPS and G-Sync. Mini LED also looks extremely interesting, but there will be a much longer wait for that. It is being worked on though at least so we will hopefully learn more about that in 2019.