Well, LG announced they will be developing a full HD 240Hz LED IPS panel [350nit, 8ms(M), 72%, 1000:1] for monitor use - Mass production is likely towards the end of the year. A 23" full HD shutter glass 172Hz panel is in MP but its TN - not IPS.
Availability of panels doesn't always mean they'll end up in monitor form. OEMs have to gauge how easy/difficult it will be to modify controllers [think WU6 panel aka 24" Apple LED which flopped due to difficulty in integration - new DP interface was too buggy]. PVAs have come along way but until Samsung offers better access to their panels [and better pricing], they'll always be Samsung products [some Jap vendors have used PVA extensively e.g. Eizo/NEC/Mitsubishi etc.]. Lets not forget the Taiwanese vendors: mass consumer orientated displays use Taiwanese panels due to availability and low cost [TNs are getting better with improved viewing angles and minimal washout due to standardisation of components - i.e. same suppliers now 'supply' both Korean and Taiwanese panel makers]. 120Hz and 3D technology was around on TW panels back in 2009 so its not a bad option for those who 'must' have 120Hz.
To have it all i.e. excellent color [IPS] + brilliant contrasts [PVA] + 3D/120Hz [TN] etc. etc. is never going to happen.
OLEDs are a long way away - they'll be introduced into smaller 5:4 displays [<10"] for industrial/mobile phone use first before becoming the norm in TVs and monitors.