Personally? Not even a little bit
All the prohecies or utopia or doom and gloom (depending on your point of view), seen it all before. Through all the changes real and percieved in the industry since I started, which was a good while ago, there has been a constant.
I've been out of work for three months since 1981...
What does real corporations mean anyway? IT not your core business, so what it's critical to your ability to do business.
Hire it in? Then it's their core business, they will need IT to support doing IT for others, are they going to hire that in? Russian doll time...
Could it result in economies of scale, possibly, but that just makes the people you have more critical and more valuable. All that will do is seperate the wheat from the chaff, an anathema to business. They want an abundance of raw materials, basic supply and demand...
In the next three to five years they will shoot themselves in the foot again, because they don't understand the cloud any more than they do the PC sat on their desk.
Then they'll pay us for triage.
So why should we be scared, they need people like us to get it right, and people like us when they don't....