So, Engrams are weird... (Destiny)

by CyberKN , Oh no, Destiny 2 is bad, Tuesday, April 28, 2015, 14:44 (3295 days ago) @ unoudid

For instance, There are multiple types of each engram and package. New ones were introduced after TDB that contained the new TDB weapons and armour, but if you still had "Vanilla" engrams sitting in your vault, those still had a chance to give you the vanilla legendary stuff (these vanilla engrams are still obtainable via patrol chests).

If you earn a cryptarch package prior to HoW dropping, that TDB package already contains TDB engrams, which in turn will decrypt into TDB gear.

TL;DR: It's impossible to "hoard" engrams and packages if you want to get HoW stuff out of them. Instead, you can hoard engrams and packages that you can decrpyt/open after HoW drops to give you REPUTATION, which goes towards ranking up and getting a new HoW package.