Complex sentence: As of mid- 2009, it seems as if Boom Studios has lost the license to Warhammer and Warhammer 40k, as with no explanation or announcement they removed all the comics and novels from their website.
Split into simpler sentences: As of mid- 2009, Boom Studios lost the license to Warhammer and Warhammer 40k for a reason they are not disclosing. They made no explanation or announcement about this, and just removed all the comics and novels from their website.