It does not make sense to join that "team". Toomin won't even go with Bitcoin Core 0.12 (
libsecp256k1 ), but rather 0.11.2 (i.e. it is possible that he is unable to apply the changes himself). Some might attack me for stating this, however I only said that it is a possibility. I can't find a good reason for which the changes should not be included in this release.
Latest stable version of Bitcoin Core is 0.11.2, thats why it is recommened to patch this version now if you support 2 MB.
Forget about "teams". Compile yourselves from source you wish to use and stop trusting authorites, this is only way to make Bitcoin decentralized. If you cant and need binaries, there is no need to stick with one team if you loose trust in the team, and you have to look for alternatives - this is what is happenig now.