A panel featuring bidders for Worldcons and NASFiC in years to come will be held at Worldcon 76 on August 17.
And Worldcon 76 has posted questionnaires completed by future bid committees.
Note that a NASFiC is held in North America only if the Worldcon goes off-continent. The Utah in 2019 bid will be voted on at Worldcon 76 (the Dublin 2019 con already having been chosen). If the New Zealand Worldcon bid wins, the Columbus in 2020 bid will be voted on at the 2019 NASFiC (not the Worldcon). ‘Tis clear as is the summer sun!
2019 NASFiC Bid
2020 Worldcon Bids
2020 NASFiC Bid
2021 Worldcon Bid
2022 and Beyond Worldcon Bids