Eddy is evil/has been hacked.The evil part is WMG?
Leo will get bionicsAfter the events of Parallel Universe, Leo may be in line to receive bionics of his own in his own universe. This is because the episode showed that there is a duplicate to everything in Leo's home universe, therefore, the 'geo-leaping' and 'lightning fingers' he possessed in that universe may be actual powers that either one of the other Lab Rats may develop... or Donald, realizing that Leo's not so useless, may have created a way to give him powers for an extreme emergency.
Chase really did join DouglasThis will be revealed in the season finale where Douglas returns. The plan has been in the making since Avalanche and it will have far reaching consequences. It will also end the season on a cliffhanger with the lab rats except Chase in mortal danger, controlled or exposed to the world.
Adam is the only Lab Rat with a biological motherWhen Douglas began making bioengineered humans, he could not make them perfect with just his own DNA. He found a suitable 'donor' and used that woman's DNA with his own to make Adam. When he made Bree, he had made significant leaps in the field of bioengineering, but found it near impossible to make a male (like he wanted) with only his DNA. However, he found a female to be more stable due to the double X chromosome as opposed to XY and settled for a girl. On his third attempt, he was finally able to perfect the process and make a male using only his DNA.
Parallel Universe Lab RatsIn the alternate universe, the Lab Rats live with Douglas, who is a doctor in that universe. Their last name is from their father taking his wife's last name to distance himself from his family. That is why they and Donald don't know each other.