1. Will it be possible to update/upgrade CB 1.9.1 to CB 2.0 and get all features (especially databas layout and possibility to create more fields) ...
Yes.
2. Will it be possible to update/upgrade Plugins of CB 1.9.1 to Plugins of CB 2.0 and get all features (especially databas layout and possibility to create more fields) ...
Yes, once new versions of the various plugins have released.
3. Will entries and settings be lost?
No, we've implemented migration in our installer, but you should review your settings carefully after install. It's recommended to clone your site and upgrade the clone then verify everything is working as expected.
4. Will integrated data like files and pcitures (for example in profile gallery) be lost?
No.
5. Will it take the same very long time to get CB 2.0 Plugins as to get CB 2.0? 2 years....
No, they'll be upgraded as quickly as I possibly can after CB 2.0 goes stable.
krileon
