We can't know anything certain about the unobservable universe. It is too distant for information from it to have reached us.
It is generally believed that the universe is much larger than the part which we can observe. It may be infinitely large. There is no reason to suppose that the unobservable part of the universe is fundamentally any different from the part which we can observe.
Dark energy and dark matter are nothing to do with the observable and unobservable universe. There is dark matter in the observable universe. We can observe it, as it has a gravitational effect. But we can't see it. It probably is some as-yet-undiscovered particle.
Dark energy is also in the observable universe, but what exactly it is is very uncertain. It may just be a number in a formula: not actually "energy" at all.
When people say that only 5% of the universe is normal matter, they are speaking about the observable universe, however, there is no reason to suppose the rest of the universe is any different.
Matter that is outside the observable universe is matter. And dark matter is dark matter. But matter that is currently outside our observable universe is too far away for any information about it to reach us. This means that the gravity of that galaxy doesn't affect us. In some sense, its gravitational force has left our observable universe. (always assuming that the observable universe isn't somehow special). Remember that gravitation isn't instant. Changes in gravitational pull propagate at the speed of light.
In the ascii art below, the S represents a galaxy, and u represents you.
The galaxy is "now" outside our observable universe (the region in the / \ is observable) It has no gravitational or other effects, however it is quite reasonable to believe the ratio of matter to dark matter is the same for this galaxy as for any other.
You can't observe the galaxy "now", but you can observe its past form, since, as you see the early galaxy is in our observable part of the universe.
S u ---Now----
^ S / \
| S / \
T S / \
I S/ \
M S \
E /S \