Supposedly there will be a v.2015 so technically it will be up there until say March 2015, then give it a more year or two depending on competition development pace.Who can afford to wait 2 years at which point you'll need another viable solution immediately and will have to switch in an insanely fast time frame?
Since companies take more time to change than individuals might even be need of Softimage knowledge for a while.
We don't know how the market will react. For example i think one result is that companies will want to develop more stuff in house to not be held to ransom.
This is an opportunity for Fabric Engine btw.
We are also in a sort of transition period technology wise. Two years later bugs have been fixed, better processes, techniques, more/easier tutorials/learning.