This may be true so far as number of platforms is concerned but in all cases they will provide a huge increase in capability over the ships and aircraft they are replacing. Looking at the three example that were given in the post you replied to:yeah but they're just aquisitions and will be replacing past systems, and therefore arn't really an expansion in our forces so dont requier any sustained rises in anual spending. So they dont really constitute a rise in the % of GDP going to defence, apart from the years just after aquisition. 2 New battalions are a different story.
The new LHDs will be light years ahead of the LPAs. They will carry more troops, more equipment and will have a more efficient means of launching their landing craft. Above all they will each be able to carry up to 16 ADF helos compared with 3-4 in the LPAs.
The AWDs will have far more capability in both air defence and surface warfare than the vessels they will replace.
The RAAF is one of the few airforces in the world looking to replace earlier generation aircraft with a 5th generation fighter on a 1 to 1 basis.
Cheers