I honestly think they should make a legacy2 for 2.0, where if you pay for like a year or something you can get partially what was within legacy1 like 4 free characters and a choco - I'm not sure.
Legacy1 was a thanks to the support during non optimal game play - Legacy2 would thanks for having loyal customers but at a much greater time period since obviously the game play isnt (or shouldnt) be the same issue.
Also things that where in 1.0 like Dalamund horn shouldn't be available in 2.0 regardless of what happens with legacy - neither should the "I am a survivor mark/tattoo" they have planned. As these are lore tied to something that only happened once.
The reason I think they should have another but not exactly a like legacy campaign is because the legacy campaign says "We gift our good customers, thank you" - which is great, people have a great sense of pride being a part of legacy. But not respecting any other future customers contributions would be like saying "we have our favorites - and you will never be my best friend" - certainty they appreciate all their customers.