There are those in At-Large who would ask whether re really need any more TLDs. But I see that as (perhaps sadly) inevitable...
a) Demand for new gTLDs exists beyond ICANN's contracted parties (and their service providers), addressing a verified (ie, by a third party) market demand
b) Expansion in the gTLD namespace serves an identifiable public interest, enhancing stability and trust in the DNS
c) Full documentation of "lessons learned from the last round" is created and -- if a new round is demonstrated through (a) and (b) above -- provides substantial input to revised rules going forward"