Will this Ice sword & board build be viable in Merciless?

I have my temp to 40 so far and in cruel getting close to act. So far I don't have too much trouble. Just wondering if this build will make it at end game? http://www.pathofexile.com/passive-skill-tree/AAAAAgUAAnEEswVbEGkUTRhdGjgjTTCXMok5ikA2RHJG101BTdhX4lprXcZgbWaed-V9U4FvgpuExIuMjHaQVZ2AnjyiAKeEtPm2hrx5wBrdBd3z4XPpc-w47SDwH_rScU2az0NjtzFY9Z3ENukkqhmF42odFEw144IoxfO-5wvesKmVcH1PfYBWGjJRYLUERUcy0biTzfp8gxEtg_cfAp6hr5uVBFZK

Only thing I'd suggest is to take more life nodes. Things hit considerably harder in Merciless and armor/ES alone aren't going to cut it.

Do you think I will need to take more life nodes with me using ice nova and Glacial strike with ele proliferation?

I think it'll be fine if you make sure to get plenty of health and res on your gear. I'd drop the chill duration for more health though