Editing List of Mario Kart Tour pre-release and unused content

Within the game's data, every course has numerous IDs referencing the renders used for it in-game. This list was refreshed with each tour and after most game updates. There are four individual numbered lists, with every ID in each list sharing a prefix:<ref>[https://api.karttour.net/id?type=course Track ID list]</ref> "Classic" for [[classic course]]s, "New" for new courses, "Remix" for [[remix course]]s, and "Battle" for [[Battle Mode|battle]] courses (including both classic and new courses). Within these lists, the IDs are sorted alphabetically and are numbered starting from 101000. Every course has up to five IDs that are visible in the list, ending with "_BG" (the first ID for a course), "_sub" (the last ID for the normal variant), "R_sub" (the last ID for the R variant), "RX_sub" (the last ID for the R/T variant) and "X_sub" (the last ID for the T variant). Many of the game's courses had their IDs present in the list prior to release, as evidenced by the numbering of the IDs, though they were not visible. Normally, the "X_sub" ID of a course and the "_BG" ID of a course after it are numerically after one another (for example, if "Track1X_sub" is numbered 1010050, "Track2_BG" should be numbered 1010051), but when an unreleased course was present between two released courses, there would be a larger difference between the ID numbers. Since the IDs are ordered alphabetically, these gaps could be used to identify courses before they were released. For example, a gap between "Ggc_YoshiCircuit" and "Gn64_ChocoMountain" would imply that [[N64 Bowser's Castle]] or [[N64 Banshee Boardwalk]] is present under the name "Gn64_BowserCastle" or "Gn64_BansheeBoardwalk", respectively. The size of the gap, when it was increased, and the amounts in which it was increased could also be used to estimate when a course in it may debut and how many courses were present within it. Pre-existing courses being increased could also help determine the themes of upcoming tours, such as how increases to all routes of [[Tour Tokyo Blur|Tokyo Blur]], [[Tour Singapore Speedway|Singapore Speedway]], and [[Tour Bangkok Rush|Bangkok Rush]] starting in the second [[Peach vs. Bowser Tour (November–December 2022)|Peach vs. Bowser Tour]] foreshadowed the [[Winter Tour (2023)|2023 Winter Tour]].<ref>[https://docs.google.com/spreadsheets/d/1F9-J88_yQomkGdgJ9dogiin4JTxWf65bWecQ_dhYA8w Spreadsheet showing ID increases between tours]</ref> Though most of the ID gaps in the game's files were filled in with courses that were later added, two remain, each having two slots: a gap in the classic course list between [[GBA Bowser's Castle 4]] and [[GBA Cheep-Cheep Island]] (which could have fit [[Broken Pier|GBA Broken Pier]] or T and R/T variants for GBA Bowser's Castle 4) and a gap in the new course list between [[Tour Paris Promenade|Paris Promenade 3]] and [[Rome Avanti]]. Additionally, prior to the [[1st Anniversary Tour]], a gap of size four existed that could have fit either N64 Banshee Boardwalk or N64 Bowser's Castle; this gap subsequently vanished and never resurfaced in the files. The final courses in the game's internal lists are [[Wii Rainbow Road]] for classic race courses, [[Yoshi's Island (race course)|Yoshi's Island]] for new race courses, [[RMX Vanilla Lake 2]] for remix courses, and [[Tour Paris Promenade|Paris Promenade B]] for battle courses, so any courses following these alphabetically cannot have their ID gaps seen (if there are any).