The "same" thing happened when Obama was elected. Bush had significantly expanded many intelligence programs and there lots of folks in the intelligence community who feared that Obama's campaign focus on closing Guantanamo and pulling out of Iraq and Afghanistan along with his focus on transparency and civil liberties meant that he would gut the entire community and all of its big programs.
They were wrong. It wasn't long before morale rebounded when people figured out Obama wasn't going to drastically shake things up.
That was partly them misunderstanding Obama, he's a pragmatic realist, he really believes in civil liberties and pulling out of wars, but he's also understands the current system evolved for a reason and is/was extremely cautious about breaking it.
But that was also just worries about downsizing, they didn't find Obama morally objectionable, they just thought they might lose their jobs.
Now, I think Trump, given his personality and what he has done so far, is more likely to shake things up then Obama was, but in the end this will end up being something that we point to the next time the administration changes and there is a story about people in the intelligence community fearing changes suffer a morale slump and start thinking about leaving.
Heck, the intelligence community loses way more people to the private sector because of things like "I can keep my phone with me at my desk," "I can talk about my work in public", and "I don't have to deal with the insanity that is government bureaucracy" way more than "the president might ask me to do something I find objectionable."
I think Trump really is fundamentally different. He doesn't seem to respect a lot of the informal rules that keep democracies democratic, and he seems quite happy with hostile foreign intelligence agencies attacking the US as long as they're attacking his enemies. There's even allegations that he's actually been under the direct influence of Russia intelligence operatives, it's not proven, but the fact that the allegations aren't insane is very disturbing.