As part of the construction of the Tron Lightcycle Power Run, it appears that the Tomorrowland Speedway will undergo changes to the track layout. It is unknown if any other changes to the attraction are in development, but one possible rumor is a "light racers" overlay.
Vehicles from the Tokyo Disneyland version of the attraction were spotted backstage in August 2017.
The rumor tracker for the Tron Lightcycle Power Run can be found here.
November 21, 2017: WDWMagic.com user marni1971 is reporting that the Tomorrowland Speedway is expected to receive a "light racers" overlay.
August 9, 2017: @Attractions on Twitter posted a photo of ride vehicles from Tokyo Disneyland's Speedway attraction behind Space Mountain at the Magic Kingdom.
July 15, 2017: At the 2017 D23 Expo, Disney officially confirmed that a Tron Attraction will be added to Tomorrowland at the Magic Kingdom. The attraction is expected to be identical to Tron Lightcycle Power Run from Shanghai Disneyland and will be placed North of the Tomorrowland Speedway and next to Space Mountain.
While it does appear that the Tomorrowland Speedway will be reconfigured, it does not appear that it will be removed. Concept art shows a new pathway beginning at the Tomorrowland Light & Power Co. and extending to Storybook Circus.
July 14, 2017 WDWMagic.com user Lee is reporting that a possible new theme for the Tomorrowland Speedway would be Tron, and the term his source used was, "Tronway"
July 10, 2017: WDWMagic.com user marni1971 is reporting that the Tron Lightcycle attraction will not be replacing the Speedway but will be added "behind" the Speedway and the full explanation will be revealed at the D23 expo. He indicated in a later post that a new theme is likely for the Speedway.
July 10, 2017: WDWNT.com is reporting that the Tron Lightcycle attraction from Shanghai Disneyland will replace the Tomorrowland Speedway by 2020/2021 and it will be officially announced on July 15th at the D23 Expo.
March 19, 2017: On Episode 123 of the Unofficial Guide's Disney Dish Podcast with Jim Hill, Jim and Len discuss the possibility of the Tron Coaster from Shanghai Disneyland replacing the Tomorrowland Speedway. This would be done for the 50th Anniversary of the park in 2021 and largely be contingent on the success of Tron 3, should it get made.
January 26, 2017: WDWMagic.com user marni1971 has reported that there are several proposals for changing the Tomorrowland Speedway but none of them have been finalized.
- Overhaul and overlay the existing attraction
- Radically alter and overlay the concept but change it.
- Radically alter and overlay the concept but change it as part of a bigger project
- Fully remove the existing attraction for something new
October, 20, 2016: WDWNT.com listed a series of rumors, one of which involves the Tron Lightcycle ride from Shanghai Disneyland being reproduced in Tomorrowland.