List of official travel partners has been posted: https://www.shanghaidisneyresort.com/en/faq/tickets/ticket-purchase/
There are 30 in all so I won't write all of them here. They are all Chinese companies.
Maybe we can contact all of them and see if they can give us any more information about pricing etc?
More info from the official website: https://www.shanghaidisneyresort.com/en/ticket/
"There is a maximum of 5 tickets available for purchase"
** Not sure what this means - can you buy 5 tickets and then go back later and buy another 5 tickets?
* The date of March 28 is when we will be able to book hotels, theme parks and Lion King tickets
* "Resort hotel rooms [...] can be booked beginning March 28, 2016 [...] Pricing and room rates will be available at that time" - this seems to suggest that hotel rates will not be announced until March 28
* If you buy tickets for two (presumably consecutive?) days you will get a 5% discount
* Tickets will be available on March 28 through the website, the reservation centre (phone number) and official travel partners
* Later (i.e. not on March 28) tickets will also be available through a mobile app and on-site
* June 16-30 is listed as the "grand opening period" - surely the opening ceremony will not last for that entire time?