RS is a very powerful and interesting products.
You can construct your environment whatever you like.
You can move your data to wherever you want.
Here are some architecture I’ve seen.
1. 40+ ASE and 1 RS
2. combine 10+ ASE to 1 ASE and redundant
4. 4 ASE replicate to 2 MS SQL
5. database replicate and table replicate
6. ASE CE and warm standby
7. 5 direction replicate
8. KISS ( Keep It Simple and Stupid )