I'm not sure exactly what you're asking, but if you want to save a 'template' of sorts for your subtitles, or other text elements, simply drag one into the Favorites folder in the Browser window. Then you can drag it to the Timeline anytime you want and change the text as needed. Personally I use the Boris Title 3D text generator or Photoshop for all text. Also, I wouldn't be too concerned about what Apple is planning - anything they develop will only be for FCP-X and won't work for older versions of FCP.
An alternative method that I've used for years is to create a 'Favorites' project in FCP. In that project I've saved several title styles I've created that I think I might want to use again in the future, along with all of my favorite transitions and filters by applying them to text clips in the Timeline. Should my preferences become corrupt or the computer need to be replaced or whenever I upgraded FCP in the past, I can easily open my Favorites project file then drag those items to the Favorites folder again.
As for the small text size, if you're using FCP 7, you can size adjust some of the interface fonts in preferences ... or you can decrease your display resolution ... or get better glasses.
-DH