I have sometimes seen the above initials used, to include an A for Allies. Here's what SERC has to say about definitions/ initials (from:
http://www.serc.mb.ca/lgbt/lgbttq-wordsdefinitions)
"LGBTTQ* Initialism - You may be familiar with GLBT, LGBT*, LGBTTQ, LGBTTQQIA*, LGBTQQIP2SAA to represent Lesbian, Gay, Bisexual, Trans*, Two Spirit, Queer, Questioning, Intersex, and Asexual individuals, families, and communities. The placement and inclusion of letters is determined by the communities using the initialism. There is no universal or official initialism for LGBTTQ* communities."