It is possible to complete the Diablo IV Paragon Board but it will not take one whole season to do that.
Source: N4G PC Maxing Out the Diablo IV Paragon Board Is Possible But Has a Condition
It is possible to complete the Diablo IV Paragon Board but it will not take one whole season to do that.
Source: N4G PC Maxing Out the Diablo IV Paragon Board Is Possible But Has a Condition