All the traditional satellite constellation companies are now engaged in mergers at varying stages, following confirmation from SES that it is in discussions to form a $10 billion a year revenue business with competitor Intelsat, as covered in Faultline last week. SES stresses that talks are at early stages, but – barring regulatory interference – the merger is likely to happen as a result of compelling economic drivers, which are expected to trump erstwhile differences between the two over strategy. This follows an impending $7.3 billion acquisition of London-based Inmarsat by the Californian-headquartered Viasat, pending regulatory sign off, although it has been provisionally cleared in the UK. Meanwhile, Paris-based Eutelsat is in earlier stages of a $3.4 billion merger with…