When I am typing I more often than not press the fullstop on the right side of the space bar. I reckon it should be remove able with the option to make space bar double tapable to put a fullstop. The following things would make this a more wonderful experience for me.
Changable user type sound on keypress choices.
A swiftkey trainer to make it easier to at least learn words that you use most, or an option to add/remove words easily. Show a list of all current words saved. Try to avoid saving random numbers (if I type 0) eg. I get lots of random numbers I have typed or saved. Which might be good for some things but things like 00000000000000000.1 is a bit strange (yes I've typed it before but....) maybe an option to have an actual save this word option? But still have the option to learn words that you use day to day basis, though I have had an issue were it doesn't learn my words even though i type them enough and click the left bar to make it remember it. It doesn't always....
If my swiftkey learned my words properly. I'd be able to use space for input word which I have used previously but it's losing its accuracy