Need some catching up.

Yup, many changes recently. You might come across below things most often

Bots:
1) Shell : it’s a miniature version of Arthur but with shields all around. The bot got speed, blast wave and mostly used as beacon runners. Counters are flames and rockets.
2) Demeter : new pantheon healing bot which heals instead of retribution. They are too powerful. One of the pilot gives 20% damage buff to its ally robots under the shield. The other pilot can heal a bit of grey area.
3) Hawk : Titan killers. The flame can target upto 500m radius. It can’t bypass shields so Arthur kinda escape. Then all other titans can get crushed by its ability. However the bot is fragile and squishy on land. It’s ability power is only 50% against regular robots.
4) Typhon : upgraded version of Cerberus. It’s aegis shield cannot be bypassed by sneaking point blank to the bot. So you gotta drain or break the shield before you cause damage, it has ability to EMP bots upto 500m. EMP disallows target from using ability along with lockdown and suppression effects.
5) Orochi : pretty new but you might happen to see them when you return as beacon runners. Similar to striders or dash bots but with more speed and cloaking.

Weapons :
Sonic : 200m radius but does ton of damage which is unhealable. Ravana and Scorpions are paired with these and quite deadly. ( yup,Ravana and scorpion are other bots you will see often)
Scorcher, scald weapons : They are a mix of rocket and flames. They have a special ability which does a bomb explode when enemy takes certain number of hits, every robot within a limited radius gets the damage.
Magnetar : the old shredder is nerfed and magnetar the lighter version of pulsar replaces it with almost similar characteristics but 600m range.

Apart from those new stuffs you will see flames and cryo weapons being used widely as counters to shells. Nucleon is other weapon you might find often. Pulsars and Wasps are as deadly as always and now paired mostly with typhons.

Titans :
Minos which has ability to dash with a protective reflector is a popular Titan used as beacon runner. It requires a healing support however to surivive longer.
Nodens : the top Titan as always
Sharanga : new with three alpha weapons and in build overdrive as ability. It can also phase shift a red target when it gets threatened by them.

Titan weapons : shot guns are introduced. Beware of them, especially coupled with new Cannibal reactor module ( does more damage to titans ). They can wipe your Titan in two three shots if they could come closer. Mostly used in Minos and Sharanga. Arthur and nodens too use occasionally.

Drones : drones are reworked and as a result, you can now equip purple shields on any bots xD probably the most disastrous feature.

Welcome back!

You will figure out the changes as you play again....if you have started playing, you already know that after the 5 qualifying battles, you most likely dropped into Expert, or lower.  This helps to build back up, or to decide not to play the hamster wheel game and stay lower leagues.  

Your profile says Masters, but where did you end up?  I came back 3.5 months ago after a 9 month quit, and went from Champs to Expert, where I still am.  Remastered made it so Masters is pretty much MK2 gear to be there......crazy.

Best of luck!

Expert is nice.....little nasty Meta, many good matches, and plenty of time to rebuild if you desire.

E1 and above is where you deal with what many here post angst about: monthly meta changes, whales, death squads, etc....

Be happy, my friend!