Well each pregnancy is different so this time you might not develope Preeclampsia again...but you just might have to get a c-section again because once they cut you before they will have to do so for all. But just take it easy this time. :)
Lots of people have c sections and go on to have a regular birth with the next! I had a c section for the exact same reason with my first and I'm now 30 weeks and plan on trying to deliver naturally! Talk to your Dr they will give you the best advice for your situation
I had pre-eclampsia with my daughter, when they induced me at almost 28 weeks, i didnt have a c-section but i was on magnesium for my whole labor. and my doctor said there is no definite cure-all way to prevent it, but the best way to try is eat HEALTHY. Kinda go by the diet as if you had gestational diabetes. I had protein in my urine at like 18 weeks then at 20 weeks there was no more. I'm at about 30 weeks and we're hopeful. Just be a little cautious, it's likely you can have it again, but it's not a forster thing.