StackPath has acquired MaxCDN. If you use MaxCDN, it doesn't seem you will be effected in the short term, though based on what I'm reading today, a move upmarket might be in the works down the road.
StackPath was started by the same folks who started, ran, and sold SoftLayer to IBM for a reported $2 billion. They came, “out of stealth,” as TechCrunch put it today, and announced a fundraising round of $180 million for StackPath, and are immediately putting it to use with a whopping four acquisitions, which TechCrunch offers has a thorough overview of.
In addition to MaxCDN, they acquired Cloak (actually in April, a VPN service), Staminus (a DDoS mitigator), and Fireblade (a WAF). If I were Sucuri or SiteLock — both growing security services with most of these features, and prominent in the WordPress community — I'd have my eyebrows fully raised, and keen to see where StackPath is headed. There's no sign they'll go after WordPress, but they are overnight a big player in the security world (which I admit I don't know much about).