Arena - 1994
Daggerfall - 1996
Battlespire - 1997
Redguard - 1998
Morrowind - 2002
Oblivion - 2006(announced 2004)
Skyrim - 2011(announced v. late 2010)
The gap between OB and SK had was big because Bethesda made Fallout 3 which was released right between OB and SK. The gap between SK and TESVI is going to be even bigger than the gap between OB and SK because it's already been 2 years since SK and Fallout 4 hasn't even been announced yet. Even if Fallout4 was announced right this minute and they released it next year, it'd still come out over three years after SK. Compare that to F3 which was released two years after OB. This means that we'll be waiting at least a year longer for TESVI, and that's only if F4 is announced soon. Why are the gaps getting so big? Bethesda is much bigger than it was in 2006, so shouldn't the gaps be getting smaller instead of bigger?