RAW and RAT (rules as tweeted), yes, resistances are kept by a wildshaped Tiefling or similar. By using the answers to this question, it can be seen that any and all features that do not explicitly require a feature on the beast (such as Hellish Rebuke requiring a finger to point) are valid for transference.
What can you do in wild shape?
When a Circle of the Moon druid gains the Wild Shape feature at 2nd level, they gain the ability to transform into beasts with a challenge rating of 1 or lower. Then, at 6th level, they can transform into a beast with a challenge rating as high as their druid level divided by 3, rounded down.
Can a non human Druid Wild shape into a human?
Can a non human druid wild shape into a human? No. Humans aren’t beasts. Nor are any other humanoid races.
Can a wood elf have fleet of Foot?
A wood elf (the elf with the best wisdom) still gets +5 speed from fleet of foot, mask of the wild, perception proficiency, fey ancestry, and (although it is of limited benefit) trance. As a DM, I tell my players that there are no suboptimal choices.
Can a wood elf increase their land speed by 5?
In the name of fun, a DM could turn a blind eye to the way Fleet of Foot is written and let the Druid increase their land speed by 5 while Wild Shaped. I suspect Fleet of Foot, like Mask of the Wild, is meant to have a supernatural aspect to it, since Wood Elf anatomy doesn’t appear to be much different from other elves.
What’s the racial ability for a wood elf?
The Wood Elf gets the ‘Fleet of Foot’ racial ability which states: “Your base walking speed increases to 35 feet.” Does this +5′ increase in land speed carry over to any Wild Shapes? Yeah, you get to keep it. You can stay in a beast shape for a number of hours equal to half your druid level (rounded down).
What’s the difference between Sylvan Elves and wood elves?
In 1st and 2nd editions, wild elves and wood elves were considered to be one sub-race, the difference merely being one of naming, with “wild elf” being considered somewhat derogatory, much like calling a moon elf, “grey elf”. At this time, the entire race was often referred to as sylvan elves, as well as copper elves and green elves.