My guess is going to be a no.
the beastlord isn't going to have near the spells like conjy/necro have, instead getting pet aa/limit break stuff to make up for it...which also seems to mean that if the pet dies, your BL is worthless until he summons a new one.
and it seems like instead of like necros and conjys getting new pet 'looks' as they upgrade thier pet spells, BLs will have to 'tame' monsters for the look they want within certain restrictions. ie no named monsters, no insects. of course once you find the look you want in the 'class' of animal, you may as well not bother taming anything else...and the taming thing according to that answer is entirely for looks. no special abilities or anything for having a white lion from Frostfang over having a regular lion from commonlands, for example.
which means prolly 90% of the mobs they are making tamable will never be tamed or used. why would you tame any crocodile if you can tame a raptor? why take any lion when you can have a displacer beast looking prowler? how many people are going to pick a regular wolf, when you can have a scaled wolf. why choose a regular bear, if they can have an owlbear.
unless they are going to be adding a bunch of new impressive looking models to 'common' mobs. if I pick a crocodile as a warder, it better look like the Jaws of crocodiles. something that coudl eat a raptor. if I pick a common wolf, it better be closer in appearance to some Cujo-ish direwolf rip your face off with it's wagging tail beast. I better get a lion large enough to use it like a horse, with a bloodred mane and a look like everything before it is nothing but walking meatracks.
otherwise, the only ones that'll get tamed will be the animals with the most 'exotic' or 'bada$$' looks.