Belgian beer is the best in the world. However InBev seems to be the ‘Bud’ of Europe anyway (Stella is regarded as the lowest on the totem pole to European beer snobs). However its still miles better than Budweiser.
The merger (if it even happens) would only serve to boost InBev’s revenues. I doubt they’d mess with the beer itself or the employees. The only thing that would change is probably more specialty beers coming out of AB’s breweries, or Stella and Becks being brewed and bottled in the US for US distribution.