The size of packages for HTML5 has greatly increased since 4.10.4 to 4.11.2 and has since increased.
First person template, no starter content - size of whole HTML5 folder once packaged:
70.5 mb 4.10.4 HTML5
229 mb 4.11.2 HTML5
241 mb 4.12.5 HTML5
257 mb 4.13.0 Preview 3 HTML5
1. Create a new FPS Template without any starter content
2. Set the target to mobile 2D/3D scaling
3. Package for HTML5
4. Do this for 4.10.4, 4.11.2, 4.12.5 and 4.13.0 Preview 3 and compare the size of the package.
Result: The package size greatly increases from 4.10 to 4.11 and steadily increases from there.
Expected: A slight increase in packaging size through the build upgrades.
Head over to the existingAnswerHub thread and let us know what's up.