Well, the downside of Apex Legends' popularity is that people want to know more and in times like that, data mining can be pretty useful, which is how we got the names of two new characters, Octane and Wattson, and two upcoming guns.
As you can see, what sets apart Apex Legends' Wattson from doctor Watson, Sherlock Holmes' sidekick, is a single 't'. Needless to say, the first part his name is already hint enough - Watt.
So, we're most likely looking at a character with EMP and/or some electricity based gimmick, whether it's about shocking enemies or messing with their shields.
Octane, on the other hand, doesn't offer a letter-based hint like Wattson, but the name does suggest a speed demon. It could easily be that Respawn end up using stim packs from Titanfall 2, but that's as far as we'd speculate.
That said, it could be that the names are just leftovers from Legends that didn't make the cut, but we have a feeling that's not the case. Mind you, it's just a feeling, so don't be betting your belongings on it.
As for the guns, Titanfall players should be familiar with the first one, as the CAR SMG has been prominently featured in both of the games. In Titanfall, it packed a much bigger punch but a slower rate of fire than other SMGs.
The second weapon, however, seems like a newcomer to the Titanfall universe and it's called Proto Hold Beam. According to the description, Proto Hold Beam drains energy from robotic targets and redirects it towards enemies.
Unfortunately, we can't think of any robotic targets other than Pathfinder, respawn beacons and the occasional loot bug thingy, so how exactly Respawn planned to make it work is a mystery. Whether Respawn will change the weapon itself, or add some robotic items to the map remains to be seen.
Reddit / GamingIntel
While we're on the subject of data mining, EA and Respawn have started swinging the ban hammer, with 16,000 accounts banned as of this weekend.