Just finished Star trek Vanguard: Storming heaven.
Is there another book were they are mentioning some of the characters of Vanguard after the series?
In Tempest's Wake, the eBook exclusive coda to the Vanguard series.
http://memory-beta.wikia.com/wiki/In_Tempest's_Wake
And next year in August The Seekers will start, a series featuring two of the ships assigned to Vanguard in their adventures in the Taurus Reach after the events of the Vanguard series.
http://www.davidmack.pro/blog/?p=4675