See the thing is, if you want to try to figure out how to "make your Aikido work against" proper boxing techniques, you need to learn how to box properly. Right? Or else you won't be giving good combinations of jabs, crosses, uppers, hooks, what have you. You'll wind up with a new set of attacks that still don't look to an actual boxer like real attacks.
In order to begin to figure out how to apply the principals of Aikido on this new field, you need to learn the principals of pugilism yourself.
So how much of your Aikido training time should you spend doing that? That's always my question when people start talking about the attacks as though they are singular physical events as performed by a robot on an assembly line. We've all got a finite amount of time to train, even if we're full-time students. How much Aikido training time do you spend practicing in a different martial context (or non-martial context, as the solo training people do) in order to develop some level of understanding of that context, so you can then begin to figure out how Aikido is supposed to work over there?
For boxing that's going to be heavy bag and speed bag work, hitting striking pads with a trainer, various types of conditioning, and lots and lots of sparring. For knife fighting that is going to require hours and hours of learning techniques (often similar to Aikido fwiw) and running through continuous flow drills. So how much time is left for Aikido, and what happens when you realize you like boxing or escrima better?
I tend to think that the most reasonable answer to these questions involves taking some generalized, standard attack vectors and sticking with those. Get new students familiar with them and then build intensity...I am not sure increasing complexity or sophistication of the attacks is worth the effort.