A. Mikhail Wayne
B. Leo
C. Natasha got tossed into another dimension. She went to work as a freelance operative and had crossed paths with Batman. She eventually discovered that Batman was Bruce and the two eventually hit it off. They never married, but stayed together. She started helping Batman on the streets of Gotham.
D. 6'3", black hair, blue eyes and athletic build.
E.
1. Was trained in martial arts by both parents from the age of two and is one of the best in the world. His mother trained him in firearms.
2. Took up the mantle of Batman when Bruce retired. He was Robin before then and on the Teen Titans.
3. He's being groomed to take over Wayne Enterprises. Bruce is still running the company and Natasha is head of security and he's learning from both parents.
4. He speaks fluent Russian (thanks to Mom) along with French, Spanish, Japanese, German and Chinese.
5. He loves women and is a serial dater. Only the special ones are brought home to meet Mom and Dad.