I'm fine with raids gears being the best for 3 months.

If there are gears that are going to lasts for up to 1-2 year it will have to be difficult to obtain, but not through low droprate kind of crap, but something that everyone can progress on, such us building 1million thaumaturge guildmarks to get an 'Ishgard's Harhar Whooper Scepter'.