1. Yes you may be jailed for 2 years or more.
2. Since the case has been lodged you should immediately seek bail from the court to avoid being arrested and lodged in jail. So engage a defence lawyer immediately.
3. Was there anybody sitting with you in the car at the time of the accident? In the court you have to attempt to prove that the biker died due to his own negligence. Any eye witness account will be crucial to the fate of the case.
4. Apply for bail immediately.