You can guess with a young junior like this based on parent looks, but to KNOW what he is going to look like as a senior is impossible. He could look nothing like he does now, good or bad. If his ears lop, he still looks like he's got a tight crown. If you can't fit 2 fingers on top of the head without touching the other ear, tight crown (or at least that is what I've found in my breedings). He looks like his crown is slipped pretty bad as well, which will make his ears look longer when they finally do drop. They aren't nice and open either from the looks of the picture. I know babies are adorable and can be a good draw of luck getting a good one cheaper at that age (giant lottery to a point cause there is no guarantee). Do you have any pictures of parents? Its hard to tell with the baby fluff, but the way the hq slopes off makes me wonder if he's chopped and undercut a bit. He's at that point where he's going to start into uglies too, he may look all franken bunny for a few months and you may wonder what you bought before he finally starts to grow back into himself at 6+ months old for a little while before he goes through another ugly stage (some lines take 2+ years to completely develop their heads/bodies). Have you asked how long kits usually take to grow out? Ugly stage times? Do you have a what would seem a good compatible doe for him when it comes to breeding? Almost every line (unless you get up there in price) has some kind of issue with crown placement, its a hard fix. IF you have a nice doe that can match his faults, you could get some nicer babies. There is no magic buck or doe to fix every problem though and you'll have to work improving with each generation (hopefully, some times it just doesn't work the way we want). Body/head are where the most importance seems to be put at the moment on the table (as long as ears are below horizontal plain, not a dq but a fault if not fully lopped). He does seem like he will have a decent head structure, if you place a triangle on his front shot, its all equal and very wide (good thing) and the side view shows a nice shape. With the right doe (like most others with potential) he may give you some nice babies. Holland Lops are VERY competitive, and depending on your area can seem/be even harder (if you have some national competitive people locally showing, great competition but very hard and can seem like you are getting no where even when you make big strides for yourself in breedings). Takes time and patients with HLs, he's a cute youngster with some potential but he's too young to say what for sure. This is, of course, all my opinion and what I've run into over the years....and every one has an opinion which can be very different from one person to the next. I don't know the line you're getting into, the parents, etc and just looking at what I have in picture (body feel can be so much more as that baby fur can hide structure issues like pin bones and pinched/chopped hq).
I've been breeding HL since 2001 showing since 2006, had a year off in 2012-2013. I work with some of the lesser varieties (chinchilla and tri mainly) and have just a few torts to help improve those. It has taken forever to get to some thing I think may do well in a breed class (and that was with a breeding outside from another breeder). I don't go to many shows and ones I do go to I still consistently place mid to upper mid class. Torts are best typed/built because of how they've been worked on so much. If you are really wanting to get into showing, look for an older junior or senior that's done okay or well on the table (if you can afford) and a brood doe or two from same line to work with. If you can't afford one like that, get the best you can so you can get farther faster in your breedings.