Mine have certainly changed, both types of partial seizure, tho the grand mal seizures haven't changed much.
I'm 37 now, but aged 5 or 6 I vividly remember a seizure at school where I heard music and had deja vu.
As I got older (11 or so) this changed.
The music changed to just a buzzing, almost as clean as a tuning fork.
Then, as I got older (15 or so), the deja vu disappeared.
Now it's only the buzzing, purely a sensory seizure, and they still happen. No confusion but a break in my concentration. The prodromes are much worse than these seizures.
The other type of partial seizure I have started aged about 19, buzzing in the head, a feeling like static electricity from an old CRT tv screen but it made my skull feel like it was making it vibrate, my brain with it. Then these got worse, jamais vu as I got close to 30, with much worse postictal spells and panic attacks.
Then the number of seizures increased from 1 grand mal every year to 6-7 a year, 5-6 small + intense partials a year to 200+ (aged 33, 2006).
The intense partials grew more severe, amnesia, nausea, plus I began to have prodromes before many seizures, partial and grand mal. Between 2 mins and 5 days before a seizure I would start to have debilitating attacks of depression, lethargy, childish bad temper and aggression. As a result of this I've had a VNS (not suitable for brain surgery) and it has reduced the number of times I have prodromes before seizures.
Not able to work since 2006, so I'm trying to learn to play the guitar (into Metallica, Megadeth and Dire Straits) and write (some poetry and maybe a novel) plus studying astrophysics and cosmology to keep my mind sharp.