submitting to the Elden Ring leaderboards will not be possible before March 18. No category is going to be created prior to that day. Note that this date is not yet set in stone. This is to give verifiers enough time to create a proper ruleset, as well as to decide which timing method and categories are appropriate.
Of course you can still submit any time you got during this period later, as long as it aligns with the CURRENT (!) ruleset once submissions are possible.
Refer to the SpeedSouls server for discussion: http://discord.speedsouls.com