Rocketman,
Do you think we'll see a bit more stratification in the BV2 group over time? For example, Westley Richards continues to build guns and therefore their brand, with presence at shows, in magazines etc. WR seems like the most likely, but, the market has not moved yet.
I would assume there would be some effect on "perceived" value of older WR's over time as new people become familiar with current WR production, (which I think would be considered BV1). Post 1960ish production is still "saddled" with its retail price. 1890ish to 1960ish production is rather homogenous, but well removed from original retail.
A corollary might be wines from Bordeaux - there are 5 first growths today, but there were only 4 (Haut Brion, Latour, Lafite Rothschild and Margaux) in the original 1855 Napoleonic classification. Mouton Rothschild was moved to a first growth in 1973 due to their perceived performance as a first growth over an extended period.
While there's a lot more intrigue to the Mouton Rothschild First Growth matriculation than I'll go into here, suffice it to say that any pre-1973 wines from Mouton Rothschild are now considered by the market to be "first growth".
The wine situation is a good learning point. Guns do follow some of the market "rules" of luxury goods.