Section 6-3.3 - Concerning the creation of certain future estates(a) Subject to the provisions of article 9: (1) An estate may be created to commence at a future time.(2) An estate for life may be created in a term of years and a future estate limited thereon.(3) A future estate may be limited after a term of years, provided that, if such future estate is subject to a condition precedent, the condition must occur within the period prescribed by article 9.(4) A fee or a lesser estate may be limited on a fee, subject to a condition precedent which must occur within the period prescribed by article 9.