Looking beyond just .com at three more TLDs, one day later Google signed:

  * 4740 .com
  *  925 .page
  *  662 .org
  *  413 .net

For a total of 6740 new DNSSEC domains. This ongoing activity is reflected in a noticeable recent uptick in the growth rates of DNSSEC for these TLDs:

  https://stats.dnssec-tools.org/tld-graphs/com.png
  https://stats.dnssec-tools.org/tld-graphs/page.png
  https://stats.dnssec-tools.org/tld-graphs/org.png
  https://stats.dnssec-tools.org/tld-graphs/net.png