1. No, but you could script it by looping through $timer() like so:
Code:
alias next_timer {
  ; Usage: $next_timer(name)
  if ($1 == $null) return
  var %i = 1, %num = 1
  while $timer(%i) != $null {
    if ($regex(nt, $ifmatch, /^ $+ $replace($1,\,\\,.,\.,?,\?,+,\+,[,\[) $+ (\d+)/i)) && ($regml(nt, 1) >= %num) %num = $calc($ifmatch + 1)
    inc %i
  }
  return %num
}


2. $timer()

3. $ltimer

Spelling mistakes, grammatical errors, and stupid comments are intentional.