The hub of wedding gown production is China and Italy amongst others. And at this time, these are the two worst-hit countries in Asia and Europe respectively. Somehow recovering as well rapidly. This has seen travels grounded from these parts, orders canceled and deliveries delayed.
What to do in the midst of all these is to stay a step ahead by going local. Designers who get their stock from China have a backlog of orders now. But local designers are not so affected by the disease. So look for an exceptional local designer to make your dress.
If you want something custom made, order at least 12 months before your wedding. This gives the designer enough time to work their charm. But if you can't deal with the former, buy your dress and shoes locally, off the rack.
They cost lesser with the within your reach for any adjustments.