When two galaxies collide could they create a wake in the dark matter around them?

"When two galaxies collide could they create a wake in the dark matter around them?"

If Dark Matter is exotic, no. If Dark Matter is normal matter, no it will create a visible wavefront / shockwave.

"The matter and energy in each galaxy would collected together by dark matter and dark energy,"

No. Dark Matter is "dragged around" or trapped by the matter of each galaxy before collision. Forget Dark Energy, since it is uniformly distributed across the entire Universe.

"i was wondering when two galaxies collide what happens to the dark matter."

The globular clusters that orbit the Milky Way, have almost no Dark Matter. So if they had Dark Matter before colliding with the Milky Way, the Milky Way siphoned it off.

"Does it scatter, quickly recombined, or nothing. I know our knowledge on dark matter/energy is limited."

We know what we have seen with galactic collisions... the Dark Matter, if exotic, just keeps going. The Bullet Cluster may or may not be an example of this. Of course it (the Dark Matter) is very dark too, which means it interferes with light from behind it (other than gravitational lensing), so it cannot be exotic Dark Matter.

It's possible, our best theories of Dark Matter say that they don't collide (just go through each other), but some actual galaxy cluster collisions show that Dark Matter looks like it is colliding, such as the Trainwreck Cluster (Abell 520).

As the Dark Matter has the same velocity as the galaxy it is associated with there is no "wake".

Dark Matter and the stars and the dust and the gasses all conserve momentum in the same manner, follow the same laws of gravity and end up with the same trajectory.

Might do ...

But we not detected dark matter as yet.

Plus we don't know what properties it has.

Anyway, there have been millions - if not billions - of galaxy mergers in the universe.

So it's a case of "que sera, sera" (whatever will be, will be)

By definition, Dark Matter does not interact with regular matter, so NO!

No - they don't interact with dark matter