Talking Chapter / Legion Themed Dreadnoughts - History and Could They Return?

Let's talk through GW's offerings for Chapter and Legion specific dreadnoughts in Warhammer 40K's past, and how much prospect there is of them returning...
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0:00 Intro
0:28 Demand for Faction Dreadnoughts
1:49 Current Space Marine Dreads
2:41 Blood Angels
4:34 Greytide Studio Upgrades - Video Sponsor
5:49 Space Wolves
7:04 Black Templars
7:44 Adeptus Custodes
9:16 Grey Knights
10;18 Dark Angels and Deathwatch
11:20 Salamanders
12:21 Forge World Named Dreads
13:10 Helbrutes
14:49 Emperor's Children
15:43 Thousand Sons
16:50 Death Guard + World Eaters
17:52 Outro