Not really no. Not all the content is the same, but I wouldn't say it's different enough to justify itself either. If you really want more Ebberon content, then your best bet is Exploring Ebberon, which Keith Baker also wrote.
The only material that I believe is missing from E:RftLW are the Aereni and Valenar Elf subraces, which you can purchase individually. Everything else in Wayfarer's Guide should all be in the main Eberron sourcebook.
Is there any reason to buy this if you already have Eberron: Rising from the Last War?
Not really no. Not all the content is the same, but I wouldn't say it's different enough to justify itself either. If you really want more Ebberon content, then your best bet is Exploring Ebberon, which Keith Baker also wrote.
The only material that I believe is missing from E:RftLW are the Aereni and Valenar Elf subraces, which you can purchase individually. Everything else in Wayfarer's Guide should all be in the main Eberron sourcebook.
Thank you guys