As landed nobility, you gain access to all early-release content. Content is updated at least once each month.
You will also receive, 'first in line' status for custom commissions. This means if you commission something special from me, your commission will skip ahead of any outside commissions I receive from the general public.
Any monthly commissions that upper tier or custom commissions wish to share will be viewable by Nobles one month before it is released to the general public.