Long story short: I will submit a Feeddler update soon that should transition well into the post-Google Reader era.
No, it's not Feedly or Digg. Their API is not ready yet. I am aware of Feedly's announcement last week and I did get its API access after the news. But Feedly folks are still working day and night to fix bugs. Their API is also different from Google's, so it will take me some time for integration.
Feeddler will first support BazQux Reader which nicely duplicates Google Reader API. In the past few days, its developer even implemented a few advanced API methods that are only used by Feeddler (e.g. drag-and-drop sorting and feed pagination) after my requests. BazQux Reader is the only one I have seen that supports full set of Google Reader API, which means Feeddler users will not miss any major functionality. It has a very usable web interface too. BazQux Reader offers a 30-day free trial and charges a $2/month subscription fee.
Not ready to commit to a subscription service? Feeddler will support Feedly later, but you might lose some functionality due to API changes.
How about Feeddler's own solution? I have completed the code for RSS aggregation and successfully tested hundred of feeds in several languages. But I still need to work on cross-plateform syncing. No subscription fee, but likely a separate app. Some non-technical issues have prevented me from spending time in this new development. I cannot promise when I will release it. Hopefully soon.