Any thought,
Is it worth it to get visa on the current pass with shorter time and then renew passport after I land in and then request for wp extending?
Yes, for the current application you have submitted, I believe, your visa as well and your work permit will be issued only till the last day of your passport.
My view is that the renewal processes are an unnecessary pain, and avoiding them for as much time as possible maybe better. As you are thinking, you should definitely try and see if you can get the Work permit and visa on a new passport.
But not sure if you can link the same application to a renewed passport.
Maybe you can check more about this on other forums, will be a common issue with multiple applications/ streams.