Looks like a simpler version of Red Falcon....

So they announce a Gavan, but he is a web exclusive?

What is the deal with TyrannoRanger? I love him (the shoulders only look weird due to the white diamonds), but is he going to be easily available? Are they going to do the other rangers and make them easily available?

We'll find out in due time. Tyranno Ranger is almost certainly going to be mass release, but the others (who I can't see them not making) are unknown at this point. The general consensus seems to be Tamashii exclusives in Japan (sans maybe Dragon Ranger) and mass releases in the US ala the DBZ Figuarts. They'll probably get new MMPR packaging too.

Den-O's final form is Climax. Liner form was only created when the Imagin couldn't possess Ryotaro anymore (In a technical sense, Liner is the last form Ryotaro gets in series, though).

making it his Final Form then :P

Just one little thing, it bugs me, and while it isn't a big deal in the long run, it is for me. When I hear the words mass release, I think of it as physical stores like TRU, Target, Walmart, will be selling them. Nothing against you, it's just that when I hear it, I don't think of online items.

Fair enough, but its better than not having the option at all. I'd love to have Amazon UK supply Tamashii items the way it does in the US.

Yes.
No. Super Climax in reality is his Final Form. Liner is great and all but as Matrixbeast said it only exists due to the Imagin being unable to possess him at a certain point. Without them to possess him it can't tap into the full sum of Den-O's power. Liner might be on the same level power wise as normal Climax but I would never call it the final form. I would reserve that for Super Climax since it is in fact an upgrade of what would be his, arguably, most powerful form.

But, Liner Form is much better looking than Climax form, so that makes it better.

Also, it allows for the Imagins take take their own Den-O forms as your signature shows, so wouldn't six Den-Os be more powerful than just one?

Actually no it doesn't. That was only possible because Owner gave each Imagin their own Den-O Belt to use and become their own forms in that movie. And in the series the only way they got the 4 basic forms together at once was because they kidnapped Ryutaro from various parts of the time line and each of them possessed one of him.

All Liner does is allow the Imagin to communicate with Ryutaro while he fights, through his sword, and sort of support him. Climax (or rather Super) is the true final form in my opinion because all of the Imagin collect their power into one container along with Ryutaro also being present.